Three-membered Nitrogen Containing Hetero Ring Is Cyclo In The Tetracyclo Ring System (e.g., Mitomycin C, Etc.) Patents (Class 548/422)
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Patent number: 8865130Abstract: The presently disclosed subject matter provides compositions that selectively bind cyclooxygenase-2 and comprise a therapeutic and/or diagnostic moiety. Also provided are methods for using the disclosed compositions for diagnosing (i.e., by imaging) a target cell and/or treating a disorder associated with a cyclooxygenase-2 biological activity.Type: GrantFiled: March 27, 2012Date of Patent: October 21, 2014Assignee: Vanderbilt UniversityInventors: Lawrence J. Marnett, Md. Jashim Uddin, Brenda C. Crews
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Patent number: 8778914Abstract: The present invention relates to a prodrug, comprising a pharmaceutically and/or diagnostically active compound, and one or more bisphosphonate groups, to a process for producing such a prodrug, and to a pharmaceutical composition comprising said prodrug, to be used for the treatment of bone-related disorders such as bone cancer.Type: GrantFiled: August 24, 2010Date of Patent: July 15, 2014Assignee: KTB Tumorforschungsgesellschaft mbHInventors: Felix Kratz, Katrin Hochdoerffer
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Publication number: 20130052138Abstract: The presently disclosed subject matter provides compositions that selectively bind cyclooxygenase-2 and comprise a therapeutic and/or diagnostic moiety. Also provided are methods for using the disclosed compositions for diagnosing (i.e., by imaging) a target cell and/or treating a disorder associated with a cyclooxygenase-2 biological activity.Type: ApplicationFiled: March 27, 2012Publication date: February 28, 2013Applicant: Vanderbilt UniversityInventors: Lawrence J. Marnett, Md. Jashim Uddin, Brenda C. Crews
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Patent number: 6713633Abstract: Novel chemical species capable of simultaneously alkylating double-stranded DNA and cleaving the same; methods for alkylating and cleaving DNA by using these species; and anticancer agents with the use of these compounds. Compounds represented by the following general formula (I) which are capable of simultaneously alkylating double-stranded DNA and cleaving the same; a method for alkylating DNA and a method for cleaving double stranded DNA by using these compounds; and medicinal compositions with the use of these compounds: B—L—A(I) wherein B represents a chemical structure capable of recognizing the base sequence of DNA, for example, optionally substituted pyrrole-imidazole polyamide; A represents a chemical structure capable of binding to one base of DNA, for example, the alkylation moiety of duocarmycin A; and L represents a linker capable of binding the chemical structures A and B, for example, vinyl.Type: GrantFiled: August 8, 2001Date of Patent: March 30, 2004Assignee: Japan Science and Technology CorporationInventors: Hiroshi Sugiyama, Zhi-Fu Tao, Isao Saito
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Patent number: 6576780Abstract: The current invention discloses hydroxyamidino derivatives useful as nitric oxide synthase inhibitors.Type: GrantFiled: October 13, 2000Date of Patent: June 10, 2003Assignee: GD Searle & CompanyInventors: Rolando E. Gapud, Timothy J. Hagen, E. Ann Hallinan, Donald W. Hansen, Jr., Barnett S. Pitzele, Suzanne S. Metz, R. Keith Webber, Foe S. Tjoeng, Robert E. Manning, Mihaly V. Toth
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Patent number: 6429212Abstract: It is to provide a cyclic imide derivative which is useful as an active ingredient of a pharmaceutical composition. A pharmaceutical composition which comprises, a cyclic imide derivative represented by the general formula (I): wherein Q1 is a single bond, —CH2—, —O—, —S— or —NH—, each of Q2 and Q3 is —C(O)—, —C(S)— or —CH2—, provided that at least one of Q2 and Q3 is —C(O)— or —C(S)—, Z is a single bond or a lower alkanediyl group, R is an aryl group which may be substituted or a cycloalkyl group which may be substituted, X is a nitro group, an amino group which may be acylated, a cyano group, a trifluoromethyl group, a hydroxyl group, a halogen atom, an alkyl group, an alkoxy group or an alkylthio group, m is an integer of from 0 to 4, and when m is 2 or above, X may be the same or different, or its salt.Type: GrantFiled: February 16, 1999Date of Patent: August 6, 2002Assignee: Ishihara Sangyo Kaisha Ltd.Inventor: Yuichi Hashimoto
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Patent number: 6355820Abstract: There is disclosed a chiral molecular magnet having characteristics exhibiting a monocrystal, a magnetic property, an optical activity, a transparent color and a relatively high transition temperature. This chiral molecular magnet is formed of a monocrystal represented by a general formula [Mn(L)]3[Cr(CN)6]2.4H2O (wherein L is optically active (R or S)-1,2-diamines and derivatives thereof or optically active (R or S)-1,3-diamines and derivatives thereof).Type: GrantFiled: June 20, 2000Date of Patent: March 12, 2002Assignee: Okazaki National Research InstitutesInventor: Katsuya Inoue
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Patent number: 5780585Abstract: A prodrug of the formula (I): ##STR1## where R.sup.1 is a group such that the compound R--NH.sub.2 represents actinomycin D, doxorubicin, mitomycin C, or a nitrogen mustard of the formula (IV): ##STR2## a prodrug of the formula (II): ##STR3## where R.sup.1 is a group such that the compound R.sup.2 OH is a phenolic nitrogen mustard; and processes whereby the prodrugs shown above are made in which a prodrug precursor compound is reacted with 4-nitrobenzyl chloroformate under anhydrous conditions.Type: GrantFiled: June 7, 1995Date of Patent: July 14, 1998Assignee: Cancer Research Campaign Technology LimitedInventors: Gillian Anlezark, Roger Melton, Roger Sherwood, Thomas Connors, Frank Friedlos, Michael Jarman, Richard Knox, Anthony Mauger, Caroline Joy Springer
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Patent number: 5776907Abstract: The present invention provides conjugates of mitomycin C or derivatives thereof and oligonucleotides. A conjugate of the present invention corresponds to formula I, below: ##STR1## where R is H, CH.sub.3, or C(O)SCH.sub.3, R' is O or NH, m is an integer from 1 to 10 and Ogn is an oligonucleotide. Pharmaceutical compositions and methods of using such conjugates to inhibit gene product expression are also provided.Type: GrantFiled: May 20, 1996Date of Patent: July 7, 1998Assignee: Texas Biotechnology CorporationInventors: Harold L. Kohn, Nam Huh, Timothy P. Kogan, Ajay A. Rege
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Patent number: 5776962Abstract: Substituted lactone compounds are useful in the treatment of precancerous lesions and neoplasms.Type: GrantFiled: June 7, 1995Date of Patent: July 7, 1998Assignees: Cell Pathways, Inc., University of ArizonaInventors: Paul Gross, Gerhard Sperl, Rifat Pamukcu, Klaus Brendel
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Patent number: 5703111Abstract: This invention relates to a stable, easy to constitute, injectable formulation of anticancer agent BMY-25067. More specifically, the present invention concerns a formulation of BMY-25067 obtained from lyophilizing a solution comprising up to 4 mg of BMY-25067 per mL of 65% t-butanol/water, further comprising about 2% PVP (K-12 or K-17), optionally comprising pharmaceutically acceptable carrier(s).Type: GrantFiled: December 4, 1996Date of Patent: December 30, 1997Assignee: Bristol-Myers Squibb CompanyInventors: Uday S. Gogate, Shreeram N. Agharkar, Lawan Phusanti
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Patent number: 5693751Abstract: This invention is a water-soluble high molecular polymerized drug comprising a water-soluble clock copolymer having a hydrophilic segment and a hydrophobic pharmacological-functioning segment to side chain of which a drug is bonded.The hydrophilic first segments of the present invention include polyethylene glycol, polysaccharides, polyacrylamide, and so on.The hydrophobic segments being attached to a drug include polyaspartic acid, polyglutamic acid, polylysine, or derivatives thereof.Drugs to be attached to the hydrophobic segment include anti-cancer drugs, drugs for central nerve, drugs for circulatory organs, and so on.Type: GrantFiled: March 8, 1995Date of Patent: December 2, 1997Assignee: Research Development Corporation of JapanInventors: Yasuhisa Sakurai, Teruo Okano, Kazunori Kataoka, Noriko Yamada, Shohei Inoue, Masayuki Yokoyama
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Patent number: 5629427Abstract: The present invention relates to analogues of 2,7-diaminomitosene, a mitomycin C metabolite, useful as antitumor, antimicrobial and/or antiviral agents. These analogues involve functionalization of the N-2 nitrogen with organic groups.Type: GrantFiled: August 26, 1993Date of Patent: May 13, 1997Inventor: Dwight M. Peterson
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Patent number: 5606017Abstract: Provided are drug/ligand compounds of Formula (I): ##STR1## in which D is a drug moiety;n is an integer from 1 to 10;p is an integer from 1 to 6;Y is O or NH.sub.2.sup.+ Cl.sup.- ;z is 0 or 1;q is about 1 to about 10;X is a ligand; and,A is a Michael Addition Adduct.In a preferred embodiment, the ligand is an immunoglobulin, preferably a chimeric antibody or fragment thereof. Also provided are formulations comprising as an active ingredient a compound of Formula (I), intermediates useful for preparing the compounds of Formula (I), processes for preparing the compounds of Formula (I), and methods for using the compounds of the invention.Type: GrantFiled: June 6, 1995Date of Patent: February 25, 1997Assignee: Bristol-Myers Squibb CompanyInventors: David Willner, Pamela A. Trail, H. Dalton King, Sandra J. Hofstead, Robert S. Greenfield, Gary R. Braslawsky
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Patent number: 5559245Abstract: New intermediates, and processes therefor, provide an efficient method for deriving 4-amino-1,2,2a,3,4,5-hexahydrobenz[cd]indoles, which are themselves intermediates to useful CNS agents, from the Kornfeld-Woodward ketone and like compounds. Preferred embodiments provide means for the preparation of substantially pure enantiomers of the desired 4-amino-1,2,2a,3,4,5-hexahydrobenz[cd]indole.Type: GrantFiled: September 12, 1995Date of Patent: September 24, 1996Assignee: Eli Lilly and CompanyInventors: Thomas J. Kress, M. Robert Leanna, Michael J. Martinelli, Barry C. Peterson
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Patent number: 5523411Abstract: The present invention relates to the synthesis of mitomycin and analogs thereof that are useful as anticancer antibiotics. The invention further relates to analogs of mitomycin, which can be prepared according to the methods of synthesis provided. The synthetic method of the invention provides for reacting a derivitized indole with a dialkylvinylsulfonium salt to yield a tricyclic skeleton having the precursors of the fourth ring in one step, followed by an oxidation step or steps to close the fourth ring and prepare mitomycin or a related compound.Type: GrantFiled: March 14, 1994Date of Patent: June 4, 1996Assignee: Rutgers UniversityInventors: Leslie Jimenez, Zheng Wang
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Patent number: 5374739Abstract: The present invention provides novel mitomycin analogs containing a cyclic acetal or thioacetal group. These compounds are mitomycin C analogs in which the 7-amino group bears a 5-membered heterocyclic substituent. Mitomycin C is an antitumor agent of established utility, and the 7-N-substituted mitosane analogs thereof have similar utility.Type: GrantFiled: May 28, 1993Date of Patent: December 20, 1994Assignee: Bristol-Myers Squibb CompanyInventors: Takushi Kaneko, Henry S. L. Wong, Terrence W. Doyle
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Patent number: 5364856Abstract: 6-heterocyclic-4-amino-1,3,4,5-tetrahydrobenz[cd]indoles are provided which are useful in modifying the function of serotonin in mammals.Type: GrantFiled: September 30, 1992Date of Patent: November 15, 1994Assignee: Eli Lilly and CompanyInventors: Richard N. Booher, David E. Lawhorn, Charles J. Paget, Jr., John M. Schaus
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Patent number: 5352798Abstract: 7-(Diphenylmethyl)oxy-9a-methoxymitosane is a novel intermediate for conversion into 7-amino and 7-oxy-9a-methoxymitosanes and is also useful for inhibiting mammalian tumor growth. The compound is prepared by reacting 7-hydroxy-9a-methoxymitosane with diazodiphenylmethane. In a preferred reaction, the compound is prepared from mitomycin C via 7-hydroxy-9a-methoxymitosane without drying (water removal). The intermediate is advantageously converted to the very effective anti-tumor agent 7-[2-(4-nitrophenyldithio)ethylamino]-9a-methoxymitosane in unexpectedly high yields using a two step process where the first step constitutes conversion to 7-[2-(2-pyridyldithio)ethylamino]-9a-methoxymitosane or 7-[2-(3-nitro-2-pyridyldithio)ethylamino]-9a-methoxymitosane.Type: GrantFiled: September 16, 1992Date of Patent: October 4, 1994Assignee: Bristol-Myers Squibb CompanyInventors: Daniel A. Benigni, Kenton L. Shultis
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Patent number: 5334611Abstract: Novel mitomycin derivatives represented by the formula (I) are obtained by introducing a substituent at the 6-position. The mitomycin derivatives of the present invention have an antitumor activity.Type: GrantFiled: August 3, 1993Date of Patent: August 2, 1994Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Hitoshi Arai, Yutaka Kanda, Motomichi Kono, Masaji Kasai, Tadashi Ashizawa, Katsushige Gomi
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Patent number: 5218126Abstract: Disclosed are mitomycin derivatives of formula (I): ##STR1## where W represents halogen; X represents methoxy, amino or ethylenimino; Y represents hydrogen or methyl; Z represents hydrogen or methyl; and one of R.sup.1 and R.sup.2 represents carbamoyloxymethyl, and the other represents hydrogen. The derivatives are usable as an antitumor and antibacterial agent.Type: GrantFiled: September 5, 1991Date of Patent: June 8, 1993Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Hitoshi Arai, Masaji Kasai, Katsushige Gomi, Tadashi Ashizawa
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Patent number: 5180825Abstract: Disclosed in a mitomycin derivative represented by the formula (I): ##STR1## wherein W is a heterocyclic group.Type: GrantFiled: November 13, 1991Date of Patent: January 19, 1993Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Hitoshi Arai, Motomichi Kono, Masaji Kasai, Katsushige Gomi, Tadashi Ashizawa
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Patent number: 5180670Abstract: A method for purification of mitomycin C comprises;a. a step of treating the culture of a mitomycin C-producing microorganism with reverse phase adsorption resin to adsorb mitomycin C onto the resin;b. a step of eluting mitomycin C with ethyl acetate out of the resin;c. a step of adding phosphate buffer to the eluate and then evaporating ethyl acetate;d. a step of passing, under pressure, the residue remaining after the evaporation through a column packed with a reverse phase adsorbent having a small particle diameter to adsorb mitomycin C onto the resin;e. a step of eluting mitomycin C with aqueous methanol out of the resin under pressure;f. a step of treating the eluate with a reverse phase adsorption resin to adsorb mitomycin C onto the resin;g. a step of eluting mitomycin C with methanol out of the resin; and,h. a step of concentrating the methanol eluate to crystallize mitomycin C.By this method, mitomycin C can be efficiently purified in an industrial scale.Type: GrantFiled: December 18, 1990Date of Patent: January 19, 1993Assignee: Kyowa Hakko Kogyo, Ltd.Inventors: Satoshi Iwata, Michio Shiomi
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Patent number: 5175303Abstract: 7-(Diphenylmethyl)oxy-9a-methoxymitosane is a novel intermediate for conversion into 7-amino and 7-oxy-9a-methoxymitosanes and is also useful for inhibiting mammalian tumor growth. The compound is prepared by reacting 7-hydroxy-9a-methoxymitosane with diazodiphenylmethane. In a preferred reaction, the compound is prepared from mitomycin C via 7-hydroxy-9a-methoxymitosane without drying (water removal). The intermediate is advantageously converted to the very effective anti-tumor agent 7-[2-(4-nitrophenyldithio) ethylamino]-9a-methoxymitosane in unexpectedly high yields using a two step process where the first step constitutes conversion to 7-[2-(2-pyridyldithio) ethylamino]-9a-methoxymitosane. or 7-[2-(3-nitro-2-pyridyldithio)ethylamino]-9a-methoxymitosane.Type: GrantFiled: September 27, 1991Date of Patent: December 29, 1992Assignee: Bristol-Myers Squibb CompanyInventors: Daniel A. Benigni, Kenton L. Shultis, Henry S. L. Wong
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Patent number: 5103018Abstract: Mitomycin derivatives containing substituted dithioethylamino groups at the 7th position are provided. The mitomycin derivatives according to the present invention are superior to mitomycin C with respect to their improved anti-tumour activity and toxicity. More particularly, they exhibit a wider tolerance of dosage against Sarcoma 180A solid tumour as well as a better survival time and weaker bone marrow supression against P388.Furthermore, certain compounds exhibit a high water-solubility which is advantageous for pharmaceutical purposes. Excellent anti-tumour agents may readily be prepared by using the derivatives of the present invention.Type: GrantFiled: October 31, 1988Date of Patent: April 7, 1992Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Kono Motomichi, Saito Yutaka, Kanda Yutaka, Kasai Masaji, Sato Akira, Morimoto Makoto, Ashizawa Tadashi
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Patent number: 5099016Abstract: The present invention provides novel mitomycin analogs containing a disulfide group and processes for the preparation thereof. These compounds are mitomycin A analogs in which the 7-alkoxy group bears an organic substituent incorporating a disulfide group. Mitomycin A is an antibiotic of established utility, and the 7-O-substituted mitosane analogs thereof have similar utility.Type: GrantFiled: February 26, 1990Date of Patent: March 24, 1992Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Terrence W. Doyle, Richard A. Partyka
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Patent number: 5098926Abstract: Novel methods for treatment of neoplastic disease states in animals, which methods comprise administering a therapeutically effective amount of a compound of the formula IV, ##STR1## wherein: Y is hydrogen or lower alkyl; and X is a radical of the formula --O--R, wherein R is:a substituted lower alkyl radical selected from the group consisting of mono- and di-hydroxy lower alkyl, cyano lower alkyl, halo lower alkyl, lower alkyl amino lower alkyl, hydroxy lower alkylthio lower alkyl, hydroxy lower alkyldithio lower alkyl, di-lower alkoxy lower alkyl, hydroxy or lower alkoxy substituted lower alkoxy lower alkyl, cyclo lower alkyl substituted lower alkyl; and lower alkyl substituted dioxolanyl lower alkyl ora lower alkenyl radical; ora lower alkynyl radical; ortetrahydro furanyl or a lower alkyl substituted derivative thereof, oxiranyl lower alkyl, tetrahydropyranyl lower alkyl, or furanyl lower alkyl.Type: GrantFiled: December 13, 1989Date of Patent: March 24, 1992Assignee: University Patents, Inc.Inventors: William A. Remers, Salah M. Sami
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Patent number: 5097036Abstract: The present invention provides novel mitomycin analogs containing a disulfide group and processes for the preparation thereof. These compounds are mitomycin A analogs in which the 7-alkoxy group bears an organic substituent incorporating a disulfide group. Mitomycin A is an antibiotic of established utility, and the 7-O-substituted mitosane analogs thereof have similar utility.Type: GrantFiled: February 26, 1990Date of Patent: March 17, 1992Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Terrence W. Doyle, Richard A. Partyka
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Patent number: 5091523Abstract: The invention relates to certain derivatives of mitomycins A and C and the use thereof to treat bacterial infections and to supress the growth of cancer cells. The invention also relates to processes for the preparation of the mitomycin derivatives of the invention.Type: GrantFiled: December 3, 1990Date of Patent: February 25, 1992Assignee: Georgetown UniversityInventors: Abdolhossen Talebian, Dianna Green, Charles Hammer, Philip Schein, Alem Ghiorghis, Robert R. Clarke
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Patent number: 5075454Abstract: 7-(Diphenylmethyl)oxy-9a-methoxymitosane is a novel intermediate for conversion into 7-amino and 7-oxy-9a-methoxymitosanes and is also useful for inhibiting mammalian tumor growth. The compound is prepared by reacting 7-hydroxy-9a-methoxymitosane with diazodiphenylmethane. In a preferred reaction, the compound is prepared from mitomycin C via 7-hydroxy-9a-methoxymitosane without drying (water removal). The intermediate is advantageously converted to the very effective anti-tumor agent 7-[2-(4-nitrophenyldithio)ethylamino]-9a-methoxymitosane in unexpectedly high yields using a two step process where the first step constitutes conversion to 7-[2-(2-pyridyldithio)ethylamino]-9a-methoxymitosane or 7-[2-(3-nitro-2-pyridyldithio)ethylamino]-9a-methoxymitosane.Type: GrantFiled: March 8, 1990Date of Patent: December 24, 1991Assignee: Bristol-Myers Squibb CompanyInventors: Daniel A. Benigni, Kenton L. Shultis, Henry S. L. Wong
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Patent number: 5068349Abstract: Novel mitomycin derivatives are characterized by a substituent on the C.sub.6 -methyl group. The mitomycin derivatives exhibit anti-tumor and antibacterial activity and have low toxicity.Type: GrantFiled: September 7, 1989Date of Patent: November 26, 1991Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yutaka Kanda, Masaji Kasai, Hitoshi Arai, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 5023253Abstract: Novel methods for treatment of neoplastic disease states in animals, which methods comprise administering a therapeutically effective amount of a compound of the formula V, ##STR1## wherein: Y is hydrogen of lower alkyl; and X is a radical of the formula --O--R, wherein R is:N,N-di (hydroxy lower alkyl)amino lower alkyl, or tri-lower alkoxy silyl lower alkyl, or cyclo lower alkyl, or halo substituted lower alkoxy lower alkyl, or tetrahydro pyranyl, or carboethoxy lower alkyl, or 1-lower alkyl pyrrolidinyl lower alkyl, or N-pyrrolidinyl lower alkyl, or 1-lower alkyl pyrrolydinyl, or dioxanyl, or hydroxy lower alkenyl, or hydroxy lower alkyl thio lower alkyl thio lower alkyl, or dioxanyl lower alkyl, or lower alkyl thio lower alkyl, or phenyl thio lower alkyl, or phenoxy lower alkyl, or thiophenyl lower alkyl, or 1-lower alkyl piperidyl, or alkyl carbonyl amino alkyl, or N-piperidyl lower alkyl, or lower alkoxy lower alkyl or lower alkyl thio hydroxy lower alkyl, or 1-lower alkyl N-piperazinyl lower alkyl, or NType: GrantFiled: December 21, 1987Date of Patent: June 11, 1991Assignee: University Patents, Inc.Inventors: Remers, William A., Sami, Salah M.
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Patent number: 5021423Abstract: Mitomycin derivatives having the formula ##STR1## wherein X is acyl, lower alkyl, alkoxycarbonyl aryloxycarbonyl or aralkoxycarbonyl;Y is hydrogen or methyl;Z is hydrogen, methyl, acyl or allyloxycarbonyl;one of R.sub.1 and R.sub.2 represents carbamoyloxymethyl and the other represents hydrogen, or R.sub.1 and R.sub.2 together represent methylene, show antibacterial and antitumor activities.Type: GrantFiled: May 26, 1989Date of Patent: June 4, 1991Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Yutaka Kanda, Hitoshi Arai, Masaji Kasai, Makoto Morimoto
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Patent number: 4927943Abstract: The present invention provides novel mitomycin analogs containing a disulfide group and processes for the preparation thereof. These compounds are mitomycin A analogs in which the 7-alkoxy group bears an organic substituent incorporating a disulfide group. Mitomycin A is an antibiotic of established utility, and the 7-O-substituted mitosane analogs thereof have similar utility.Type: GrantFiled: November 7, 1988Date of Patent: May 22, 1990Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Terrence W. Doyle, Richard A. Partyka
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Patent number: 4888341Abstract: Novel methods for treatment of neoplastic disease states in animals, which methods comprise administering a therapeutically effective amount of a compound of the formula IV, ##STR1## wherein: Y is hydrogen or lower alkyl; and Z is a radical of the formula --O--R, wherein R is:a substituted lower alkyl radical selected from the group consisting of mono- and di-hydroxy lower alkyl, cyano lower alkyl, halo lower alkyl, lower alkyl amino lower alkyl, hydroxy lower alkylthio lower alkyl, hydroxy lower alkyldithio lower alkyl, di-lower alkoxy lower alkyl, hydroxy or lower alkoxy substituted lower alkoxy lower alkyl, and cyclo lower alkyl substituted lower alkyl; ora lower alkenyl radical; ora lower alkynyl radical; ora substituted or unsubstituted oxygen-containing heterocyclic radical selected from the group consisting of tetrahydro furanyl or lower alkyl substituted derivatives thereof, lower alkyl substituted oxiranyl, lower alkyl substituted dioxolanyl, lower alkyl substituted pyranyl, or lower alkyl substituteType: GrantFiled: September 4, 1984Date of Patent: December 19, 1989Assignee: University Patents, Inc.Inventors: William A. Remers, Salah M. Sami
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Patent number: 4880825Abstract: Mitomycin derivatives having potent anti-tumor activity having the formula: ##STR1## wherein one of R.sub.1 and R.sub.2 represents carbamoyloxymethyl and the other represents hydrogen or R.sub.1 and R.sub.2 are bonded together to form methylene;X is hydrogen or halogen;Y is hydrogen or methyl;Z is hydrogen, methyl or acyl; andn is an integer of 2 or 3.Type: GrantFiled: March 25, 1988Date of Patent: November 14, 1989Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Masaji Kasai, Yutaka Kanda, Motomichi Kono, Yutaka Saito, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4874779Abstract: Disclosed herein are N.sup.7 -alkylphosphate derivatives of mitomycin C and porfiromycin showing antitumor activity against transplanted human tumor and reduced toxicity relative to the parent N.sup.7 -alkanol mitomycin compounds.Type: GrantFiled: June 29, 1988Date of Patent: October 17, 1989Assignee: Bristol-Myers CompanyInventor: Peter D. Senter
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Patent number: 4866180Abstract: This invention refers to 7-amino mitosane analogs (mitomycin C) in which the 7-amino group bears an organic substituent incorporating a disulfide group and to a novel thiol exchange process for producing these compounds. The compounds are inhibitors of experimental animal tumors.Type: GrantFiled: September 23, 1985Date of Patent: September 12, 1989Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Yulin Chiang, Terrence W. Doyle
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Patent number: 4863935Abstract: Mitomycin derivatives having potent anti-tumor activity against solid sarcoma 180 tumors and lymphocytic leukemia P-388 tumors.Type: GrantFiled: December 11, 1987Date of Patent: September 5, 1989Assignee: Kyowa Hakko Kogyo K.K.Inventors: Yasushi Shida, Tokuyuki Kuroda, Ikuo Matsukuma, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4853385Abstract: 7-N,8-N-Ethylenemitomycin 8-imines represented by the formula ##STR1## wherein one of the R.sub.1 and R.sub.2 represents carbamoyloxymethyl and another represents hydrogen or both are combined together to form methylene; R.sub.3, R.sub.4, R.sub.5 and R.sub.6 each independently represent hydrogen or C.sub.1-4 alkyl, or R.sub.3 and R.sub.4 may be combined together to represent --(CH.sub.2).sub.n --, wherein n is 3 or 4; and Y and Z represent hydrogen or methyl, provided that when R.sub.1 represents carbamoyloxymethyl and Y represents methyl, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6 and Z are not hydrogen simultaneously, has an excellent antitumor activity.Type: GrantFiled: March 29, 1988Date of Patent: August 1, 1989Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Yutaka Saito, Masaji Kasai, Kunikatsu Shirahata, Motomichi Kono, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4820824Abstract: Mitomycin compound having potent antitumour activity having the formula: ##STR1## wherein ##STR2## (wherein Ra, Rb and Rc each independently represent lower alkyl, cycloalkyl having 3-7 carbon atoms or phenyl; or Ra and Rb are bonded together to form a poly-methylene group having 2-5 carbon atoms);one of R.sub.1 and R.sub.2 represents carbamoyloxymethyl and the other represents hydrogen; or R.sub.1 and R.sub.2 may together form an exocyclic methylene group;and Y and Z each independently represents hydrogen or methyl.Type: GrantFiled: August 19, 1987Date of Patent: April 11, 1989Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Motomichi Kono, Masaji Kasai, Yutaka Saito, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4814445Abstract: The present invention provides novel mitomycin analogs containing a disulfide group and processes for the preparation thereof. These compounds are mitomycin A analogs in which the 7-alkoxy group bears an organic substituent incorporating a disulfide group. Mitomycin A is an antibiotic of established utility, and the 7-O-substituted mitosane analogs thereof have similar utility.Type: GrantFiled: February 25, 1988Date of Patent: March 21, 1989Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Terrence W. Doyle, Richard A. Partyka
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Patent number: 4803212Abstract: The present invention refers to mitomycin analogs containing a disulfide group. These compounds are mitromycin C derivatives in which the 7-amino group bears an organic substituent incorporating a disulfide group. The compounds are inhibitors of experimental animal tumors.Type: GrantFiled: February 24, 1984Date of Patent: February 7, 1989Assignee: Bristol-Myers CompanyInventors: Dolatrai M. Vyas, Yulin Chiang, Terrence W. Doyle
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Patent number: 4791113Abstract: Mitomycin derivatives having potent antitumor activity having the formula: ##STR1## wherein A is ON--or R.sub.4 N.dbd.N--[wherein R.sub.4 is selected from ##STR2## and optionally substituted heterocyclic groups (wherein R.sub.5 and R.sub.8 are each independently selected from hydrogen, lower alkyl and lower cycloalkyl; R.sub.6 is selected from hydrogen, halogen, hydroxy, lower alkoxy, amino and nitro; R.sub.7 is selected from lower alkyl and lower cycloalkyl; and X is selected from oxygen, sulphur and imino)];R.sub.1 and R.sub.2 are each independently selected from hydrogen, lower alkyl, lower cycloalkyl, optionally substituted aralkyl, optionally substituted alkanoyl, optionally substituted arylcarbonyl, optionally substituted alkanesulfonyl, arylsulfonyl and aralkylsulfonyl;R.sub.3 is hydrogen or carbamoyl;Y is hydrogen or methyl;Z is selected from hydrogen, methyl and acetyl;and is an .alpha. or .beta. bond.Type: GrantFiled: May 12, 1987Date of Patent: December 13, 1988Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Tokuyuki Kuroda, Koji Hisamura, Tohru Sugaya, Yutaka Ohsawa, Hideo Ueno, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4791130Abstract: Mitomycin derivatives having potent antitumour activity have the formula: ##STR1## wherein R represents lower alkyl, cycloalkyl or unsubstituted or substituted aralkyl;X represents hydrogen or carbamoyl;Y and Z each independently represents hydrogen or methyl;and represents an .alpha. or .beta. bond.Type: GrantFiled: April 15, 1987Date of Patent: December 13, 1988Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Tokuyuki Kuroda, Koji Hisamura, Tohru Sugaya, Yutaka Ohsawa, Hideo Ueno, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4771068Abstract: Mitomycin derivatives of the formula: ##STR1## wherein X is ##STR2## [wherein R.sub.3 is alkyl, cycloalkyl or optionally substituted phenyl; and R.sub.4 is alkyl or cycloalkyl]; n is an integer of 2 to 8; one of R.sub.1 and R.sub.2 is a hydrogen atom and the other is a carbamoyloxymethyl group, or alternatively R.sub.1 and R.sub.2 may be combined together to form a methylene group (.dbd.CH.sub.2); and Y and Z independently represent hydrogen or methyl;exhibit anti-bacterial and anti-tumor activities.Type: GrantFiled: April 10, 1986Date of Patent: September 13, 1988Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Masaji Kasai, Yutaka Saito, Motomichi Kono, Akira Sato, Hiroshi Sano, Kunikatsu Shirahata, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4748251Abstract: Mitomycin derivatives represented by the formula (I): ##STR1## wherein R.sub.1 and R.sub.2 may be the same or different, and represent a hydrogen atom or a lower alkyl group; R.sub.3 and R.sub.4 mean that when R.sub.3 is a hydrogen atom, R.sub.4 represents --CH.sub.2 OCONH.sub.2 or ##STR2## (wherein R.sub.1 and R.sub.2 have the same significances as defined above), or R.sub.3 and R.sub.4 are combined to form .dbd.CH.sub.2 ; Y and Z may be the same or different, and represent a hydrogen atom or a methyl group; represents .alpha.- or .beta.-bond, provided that Y represents a hydrogen atom when R.sub.4 takes .beta.-configuration, have an excellent anti-tumor activity.Type: GrantFiled: January 30, 1986Date of Patent: May 31, 1988Assignee: Kyowa Hakko Kogyo Co., Ltd.Inventors: Kunikatsu Shirahata, Motomichi Kono, Masaji Kasai, Makoto Morimoto, Tadashi Ashizawa
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Patent number: 4746746Abstract: Novel methods for treatment of neoplastic disease states in animals, which methods comprise administering a therapeutically effective amount of a compound of the formula IIIa, ##STR1## wherein: Y is hydrogen or lower alkyl; and Z is an hydroxy substitited 1-pyrrolidinyl radical, ora lower alkyl substituted piperidyl radical, ora 1-piperazinyl radical or an acetamino, acetyl, carbamido, cyano, carboxy lower alkylamino, di-lower alkoxy, nitro, sulfamyl, or lower alkyl substituted anilino radical, ora radical of the formula, ##STR2## wherein R is hydrogen or lower alkyl and R.sup.1 is a nitrogen containing heterocyclic radical selected from the group consisting of amino substituted triazolyl, lower alkyl substituted isothiazolyl, benzothiazolyl, and nitro and halo substituted derivatives of benzothiazolyl, or R.sup.Type: GrantFiled: July 22, 1985Date of Patent: May 24, 1988Assignee: University Patents, Inc.Inventor: William A. Remers
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Patent number: 4720543Abstract: This invention discloses 1a- and 7-substituted derivatives of mitosanes containing thiocarbamoyl and glycosyl residues. The compounds possess antibacterial and antitumor activity, with a concomitant reduction in bone marrow toxicity as compared to the parent compounds.Type: GrantFiled: June 6, 1985Date of Patent: January 19, 1988Assignee: Georgetown UniversityInventors: Eugene McPherson, Philip S. Schein
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Patent number: 4691024Abstract: The present invention provides new mitomycin derivatives of general formula (I) ##STR1## [wherein Y and Z, which may be the same or different, each represents a hydrogen atom or a methyl group;represents .alpha. or .beta. bonding and X represents a group of formula (II) ##STR2## (wherein R.sub.1 to R.sub.5 are each selected from hydrogen, halogen, hydroxyl, nitro, amino, lower alkyl, lower alkoxy, lower alkylamino or lower alkanoylamino);or an S-yl group of an amino acid having a thiol group, the carboxyl group optionally being protected e.g. in the form of a lower alkyl ester group and the amino group optionally being protected e.g. in the form of a lower alkanoylamino group;or an S-yl group of a di- or tripeptide containing an amino acid residue with a thiol group, the carboxyl group optionally being protected e.g. in the form of a lower alkyl ester and the amino group optionally being protected e.g. in the form of a lower alkanoylamino group]; and salts thereof.Type: GrantFiled: October 3, 1986Date of Patent: September 1, 1987Assignee: Kyowa Hakko Kogyo Kabushiki KaishaInventors: Kunikatsu Shirahata, Motomichi Kono, Yutaka Saito, Masaji Kasai, Makoto Morimoto, Tadashi Ashizawa