Ring Nitrogen Is Shared By Five-membered Cyclo And Six-membered Cyclo (e.g., Vincamine, Etc.) Patents (Class 546/51)
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Patent number: 11234933Abstract: Emulsome compositions comprising phosphatidylcholine, cholesterol, tristearin, and one or more lipophilic bioactive agents such as vinpocetine are provided. The emulsomes may further comprise surface modifications of either [N-(carbonyl-methoxypropylethyleneglycol-2000)-1,2-distearoyl-sn-glycero-3-phosphoethanolamine, sodium salt] (MPEG-DSPE) for peglyation or stearylamine for cationization. Methods of improving brain delivery of lipophilic bioactive agents by intranasally administering such emulsome compositions are also provided.Type: GrantFiled: March 2, 2021Date of Patent: February 1, 2022Assignee: KING ABDULAZIZ UNIVERSITYInventors: Hibah M. Aldawsari, Shaimaa M. Badr-Eldin, Nourah Y. Assiri, Abdelsattar Omar
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Patent number: 11058637Abstract: Emulsome compositions comprising phosphatidylcholine, cholesterol, tristearin, and one or more lipophilic bioactive agents such as vinpocetine are provided. The emulsomes may further comprise surface modifications of either [N-(carbonyl-methoxypropylethyleneglycol-2000)-1,2-distearoyl-sn-glycero-3-phosphoethanolamine, sodium salt] (MPEG-DSPE) for peglyation or stearylamine for cationization. Methods of improving brain delivery of lipophilic bioactive agents by intranasally administering such emulsome compositions are also provided.Type: GrantFiled: November 25, 2020Date of Patent: July 13, 2021Assignee: King Abdulaziz UniversityInventors: Hibah M. Aldawsari, Shaimaa M. Badr-Eldin, Nourah Y. Assiri, Abdelsattar Omar
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Patent number: 8927564Abstract: Disclosed embodiments concern polycyclic alkaloid compounds and methods for their use and synthesis. Particular embodiments concern polycyclic alkaloids having a fused, six-membered ring, while other embodiments concern polycyclic alkaloids having a fused, five-membered ring. Methods for making the polycyclic alkaloids are disclosed, as well as methods for their use as prophylactics or treatments for certain diseases. Also disclosed are pharmaceutical compositions comprising the polycyclic alkaloids and their use.Type: GrantFiled: March 7, 2013Date of Patent: January 6, 2015Assignee: Rigel Pharmaceuticals, Inc.Inventors: Dane Goff, Donald G. Payan, Sylvia Braselmann
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Patent number: 8765432Abstract: The present invention provides random copolymers containing phosphorylcholine and one or more functional agents, and methods of preparing such random copolymers.Type: GrantFiled: May 10, 2010Date of Patent: July 1, 2014Assignee: Oligasis, LLCInventors: Stephen A. Charles, D. Victor Perlroth
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Publication number: 20130237524Abstract: Disclosed embodiments concern polycyclic alkaloid compounds and methods for their use and synthesis. Particular embodiments concern polycyclic alkaloids having a fused, six-membered ring, while other embodiments concern polycyclic alkaloids having a fused, five-membered ring. Methods for making the polycyclic alkaloids are disclosed, as well as methods for their use as prophylactics or treatments for certain diseases. Also disclosed are pharmaceutical compositions comprising the polycyclic alkaloids and their use.Type: ApplicationFiled: March 7, 2013Publication date: September 12, 2013Applicant: Rigel Pharmaceuticals, Inc.Inventors: Dane Goff, Donald G. Payan, Sylvia Braselmann
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Publication number: 20120283284Abstract: The present invention relates to pharmaceutical technical field, to melonine bisindole compounds, pharmaceutical compositions thereof, and preparation methods thereof. Specifically, the present invention relates to melonine bisindole compounds of Formula I, pharmaceutically acceptable salts thereof, pharmaceutical compositions comprising the compounds or pharmaceutically acceptable salts thereof. The present invention further relates to method for preparing the melonine bisindole compounds of Formula I or pharmaceutically acceptable salts thereof, and the use of the melonine bisindole compounds of Formula I or pharmaceutically acceptable salts thereof in the manufacture of a medicament for the treatment or prophylaxis of cancers.Type: ApplicationFiled: November 4, 2010Publication date: November 8, 2012Applicant: Kunming Institute of Botany, The Chinese Academy of SciencesInventors: Xiaodong Luo, Tao Feng, Yan Li, Yuanyuan Wang, Xianghai Cai, Yaping Liu
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Publication number: 20120232241Abstract: The present invention relates to compounds of the formula (1), formula (2), formula (3) and formula (4) which are suitable for use in electronic devices, in particular organic electroluminescent devices.Type: ApplicationFiled: October 20, 2010Publication date: September 13, 2012Applicant: Merck Patent GmbH Patents & Scientific InformationInventors: Philipp Stoessel, Esther Breuning, Dominik Joosten, Christof Pflumm, Amir Hossain Parham
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Patent number: 7994186Abstract: A camptothecin-containing pharmaceutical composition which contains: (a) camptothecin or a derivative thereof, and (b) one or more compounds selected from among ascorbic acid or a salt thereof, sodium hydrogen sulfite, sodium sulfite, potassium pyrosulfite, sodium erythorbate, sodium thioglycolate, sodium pyrosulfite, and ?-thioglycerin. The pharmaceutical composition is useful in that, after storage for a long period of time or under light-irradiation conditions, camptothecin or a derivative thereof contained therein undergoes minimum degradation.Type: GrantFiled: April 18, 2005Date of Patent: August 9, 2011Assignee: Kabushiki Kaisha Yakult HonshaInventors: Masako Nakazawa, Ritsuo Aiyama, Masato Nagaoka
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Patent number: 7910593Abstract: An objective of the present invention is to provide water-soluble prodrugs that can be administered parenterally, and which show excellent water solubility and small interspecies or individual differences and are rapidly converted to the active form by chemical conversion. This invention provides water-soluble prodrugs represented by formula (1), or pharmaceutically acceptable salts, or hydrates or solvates thereof, (wherein, R1 represents a hydrogen atom, or C1-C6 alkyl group; W represents a divalent group comprising a tertiary amino group or sulfonyl group; and Y represents a residue of a compound represented by Y—OH comprising an alcoholic hydroxyl group).Type: GrantFiled: April 8, 2005Date of Patent: March 22, 2011Assignee: Chugai Seiyaku Kabushiki KaishaInventors: Isao Umeda, Jun Ohwada, Sawako Ozawa
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Publication number: 20110059977Abstract: The present invention relates to the use, for the preparation of a medicament intended for the treatment or the prevention of pathologies linked to, or caused by mycobacteria, of at least one of the compounds of the following formula (I): in which B represents in particular a nitrogen atom, and R1, R2, R3, R4, R5, R6, R7 and R8 represent in particular a hydrogen atom.Type: ApplicationFiled: March 22, 2007Publication date: March 10, 2011Applicant: INSTITUT DE RECHERCHE POUR LE DEVELOPPEMENT (I.R.D.)Inventors: Alain Robert Francois Maxime Fournet, Delphine Lagoutte, Erwan Poupon, Flor Soriano-Agaton
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Publication number: 20100168149Abstract: Compound of formula (I): wherein: R1, R2, R3, R4, R5, R80, R90, R81, R91, Alk and G are as defined in the description. Medicinal products containing the same which are useful in the treatment of cancer diseases.Type: ApplicationFiled: August 4, 2006Publication date: July 1, 2010Inventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, John Hickman, Stephane Leonce
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Publication number: 20100168150Abstract: Compound of formula (I): wherein: R1, R2, R3, R4, R5, R80, R90, R81, R91, Alk, Alk?, X, X? and G are as defined in the description. Medicinal products containing the same which are useful in the treatment of cancer diseases.Type: ApplicationFiled: August 4, 2006Publication date: July 1, 2010Applicant: Les Laboratoires ServierInventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, John Hickman, Stephane Leonce
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Publication number: 20100113498Abstract: The invention provides vinblastine derivatives represented by the following formula 1 or their physiologically acceptable salts, their preparation, use and pharmaceutical compositions comprising the said derivatives. The said vinblastine derivatives show inhibiting activities against tumor cell lines and can be used as medicaments for treating malignant tumors.Type: ApplicationFiled: December 17, 2007Publication date: May 6, 2010Applicant: Shanghai Institute of Materia Medica, Chinese Academy of SciencesInventors: Lihong Hu, Xu Shen, Hualiang Jiang, Liguang Lou
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Patent number: 7605262Abstract: 4-O esters of podophyllotoxin and 4?-demethylepipodophyllotoxin are provided. The compounds are 4-O esters of an alkanoic acid or substituted alkanoic acid and podophyllotoxin and 4?-demethylepipodophyllotoxin. The compounds are useful for treating cancer.Type: GrantFiled: January 18, 2008Date of Patent: October 20, 2009Assignees: Sutter West Bay Hospitals, Catholic Healthcare WestInventor: Li-Xi Yang
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Patent number: 7557118Abstract: A method for the preparation of a compound of general Formula: or pharmaceutically acceptable derivatives and salts, racemates, isomers and/or tautomers thereof comprising cyclizing an azomethine ylide of general Formula: wherein, A is a cyclic or non-cyclic group; Z is a carbon or a heteroatom; n is selected from 0, 1, 2 or 3; W, X and Y may be the same or different and each are selected from hydrogen; optionally substituted alkyl, alkenyl, alkynyl, amino, alkoxy, alkenoxy, alkynoxy, aryl, alkylthio, heterocyclyl; carboxy, carboxy ester, carboxamido, acyl, acyloxy, mercapto, halogen, nitro, sulfate, phosphate, cyano and optionally protected hydroxy; or W and X, together with the nitrogen and carbon atoms to which they are attached, form a saturated or unsaturated nitrogen containing heterocyclic group which may be optionally substituted or optionally fused to a saturated or unsaturated carbocyclic group, aryl group or heterocyclic group is provided.Type: GrantFiled: March 7, 2005Date of Patent: July 7, 2009Assignee: The Australian National UniversityInventors: Martin Gerhardt Banwell, Bernard Luke Flynn
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Patent number: 7517891Abstract: The present invention relates to compositions and methods for preparing pharmaceutical compositions. In some embodiments, the invention includes compounds and methods of resolving chiral compounds. In some embodiments, the invention includes chiral and crystalline compositions and hydrates. In some embodiments, the invention contemplates compositions comprising camptothecin derivatives and synthetic intermediates thereof. In some embodiments, the invention includes methods of protecting, inserting, modifying, separating isomers, and removing chemical groups.Type: GrantFiled: October 26, 2006Date of Patent: April 14, 2009Assignee: Glyconix CorporationInventor: Brian Keith Shull
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Publication number: 20080255175Abstract: Compounds and compositions useful in methods for treating cancer in mammals. The compounds of the invention are of the formula: or a pharmaceutically acceptable salt, entantiomer or disastereomer thereof, wherein the “A” ring is a nitrogen-aryl group; each occurrence of Y is independently oxygen or H2; Z is oxygen or —CH2—; X is nitrogen or —CH; R1, R2, R3, R4, R5, R6, and R7 are subsitutents; n is an integer from 1-7; m is an integer having a value of 1-5; and the dotted line represents an optional bond.Type: ApplicationFiled: April 16, 2007Publication date: October 16, 2008Inventors: Marina K. Lam, Kwok-Leung Shum, Wei Sun
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Patent number: 7396837Abstract: New lamellarins are provided of the general formula III or a pharmaceutically acceptable salt, derivative, prodrug or stereoisomer thereofType: GrantFiled: August 13, 2003Date of Patent: July 8, 2008Assignee: Pharma Mar, S.A.U.Inventors: Christian Bailly, Andrés Francesch, Maria Cristina Mateo Urbano, José Antonio Jiménez Guerrero, Alfredo Pastor Del Castillo, Carmen Cuevas Marchante
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Publication number: 20080125451Abstract: The present invention relates to novel vinorelbine derivatives. Pharmaceutical compositions containing these compounds as well as processes of preparation and processes of use for treatment of various conditions are also disclosed.Type: ApplicationFiled: September 12, 2007Publication date: May 29, 2008Applicant: AMR TECHNOLOGY, INC.Inventors: Mark A. WOLF, Peter R. GUZZO, Ian L. SCOTT
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Publication number: 20080119502Abstract: The present invention relates to derivatives of vinca alkaloids. Pharmaceutical compositions containing these compounds as well as processes of preparation and treatment of various conditions are also disclosed.Type: ApplicationFiled: September 12, 2007Publication date: May 22, 2008Applicant: AMR TECHNOLOGY, INC.Inventors: Mark A. WOLF, Peter R. GUZZO, Ian L. SCOTT
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Patent number: 7354918Abstract: The invention relates to novel derivatives of 14,15-dihydro 20,21-dinoreburnamenin-14-ol, having formula (I) in which R represents a radical —AR? wherein A represents a heteroatom and R? represents a group selected from the group comprising linear or branched C1-C6 alkyl radicals, C2-C6 alkenyls, C2-C6 alkynyls, arylalkyls; esters comprising the formula —R1— CO—O—R2; amides comprising the formula —R3—CO—NZY, wherein Y and Z together can form a cycloalkyl radical or a heterocyclic radical, optionally substituted by one or more alkyl radicals; a radical selected from the group comprising alkyl radicals, alkenyls or alkynyls, substituted by at least one amine with formula —NZY; or one of the pharmaceutically-acceptable salts thereof, including the isomers, enantiomers and diastereoisomers thereof and mixtures thereof.Type: GrantFiled: October 13, 2006Date of Patent: April 8, 2008Assignee: BiocortechInventors: Paola Ciapetti, Laurence Deyon, Camille-Georges Wermuth, Jean-François Pujol, Dinah Weissmann
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Patent number: 6835807Abstract: A drug complex useful as a DDS compound, which is represented by the following formula: A-R—NH—Y—CH2—O—CO-Q, wherein A is a polymer as a drug carrier; R is a spacer, wherein the spacer is an amino acid or an oligopeptide comprising 2 to 8 amino acids; Y is phenylene group which may be substituted; and Q is a residue of a drug compound such as antineoplastic agents. The complex provides rapid and site-selective release of a drug compound such as antineoplastic or anti-inflammatory agents and surely exhibits expected efficacy.Type: GrantFiled: February 13, 2001Date of Patent: December 28, 2004Assignee: Daiichi Pharmaceuticals Co., Ltd.Inventors: Hiroshi Susaki, Kazuhiro Inoue, Hiroshi Kuga
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Publication number: 20040235878Abstract: The key intermediate in any synthesis of Irinotecan is 7-ethyl-10-hydroxy-20(S)-camptothecin. A process for the efficient synthesis of this intermediate is demonstrated proceeding through readily available 20(S)-camptothecin. Various other tecan compounds may be made by use of corresponding 7-alkyl-10-hydroxy-20(S)-camptothecin intermediates.Type: ApplicationFiled: May 12, 2004Publication date: November 25, 2004Applicant: ScinoPharm Taiwan, Ltd.Inventors: Chien-Hsing Lin, Yung-Fa Cheng, Kau-Ming Cheng
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Patent number: 6811996Abstract: A drug delivery system compound comprising a carboxy(C1-4)alkyldextran polyalcohol modified with a saccharide compound and a residue of drug compound bound to the carboxy(C1-4)alkyldextran polyalcohol, and a method for measuring a drug delivery system compound in which a polymer carrier and a residue of drug compound are bound to each other by a spacer comprising 2 to 8 amino acids linked by peptide bond(s), which comprises treating the drug delivery system compound with a peptidase, and measuring the resulting hydrolysate.Type: GrantFiled: July 2, 2001Date of Patent: November 2, 2004Assignee: Daiichi Pharmaceutical Co., Ltd.Inventors: Kazuhiro Inoue, Hiroshi Kuga, Yoshinobu Shiose, Hiroshi Korenaga
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Publication number: 20040198760Abstract: The present invention relates to pharmaceutically acceptable salts formed by the compounds of general formula (I), their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs and pharmaceutically acceptable compositions containing them. The present invention also relates to a process for the preparation of the above said pharmaceutically acceptable salts, their derivatives, their analogs, their tautomeric forms, their stereoisomers, their polymorphs, and pharmaceutical compositions containing them.Type: ApplicationFiled: March 23, 2004Publication date: October 7, 2004Inventors: Sairam Pothukuchi, Subrahmanyam Duvvuri, Sriram Rajagopal
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Publication number: 20040192917Abstract: The present invention relates to an improved and economical process for the isolation of anticancer agent Camptothecin from the twigs and stem of Nothapodytes foetida using hot extraction 20(S) Camptothecin is an alkaloid, which contains a pentacyclic ring system that includes a pyrrolo [3,4-b] quinoline moiety (ring A, B and C), the pyridone ring D and a chiral centre at C-20 in ring E.Type: ApplicationFiled: March 31, 2003Publication date: September 30, 2004Inventors: Santosh Kumar Srivastava, Merajuddin Khan, Suman Preet Singh Khanuja
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Patent number: 6756381Abstract: A polymorphic form of 9-nitrocamptothecin is provided, the polymorph being characterizable as having an IR spectrum with an absorption centered between 3625 cm−1 and 3675 cm−1 and containing more than a trace of water.Type: GrantFiled: February 21, 2002Date of Patent: June 29, 2004Assignee: SuperGen, Inc.Inventors: Sanjeev Redkar, Ashok Gore
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Publication number: 20040087609Abstract: Problem: A large scale production of camptothecin, which is a starting compound of irinotecan hydrochloride and various camptothecin derivatives, at a low cost and with ease.Type: ApplicationFiled: November 25, 2002Publication date: May 6, 2004Inventors: Takashi Yaegashi, Takanori Ogawa, Seigo Sawada
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Patent number: 6709679Abstract: Conjugates of transferrin, albumin and polyethylence glycol consisting of native or thiolated transferrin or albumin or of polyethylene glycol (MW between approximately 5,000 and 20,0000) with at least one HS—, HO— or H2N group and cytostatic compounds derived through maleinimide or N-hydroxysuccinimide ester compounds, such as doxorubicin, daunorubicin, epirubicin, idarubicin, mitoxandrone, chloroambucil, melphalan, 5-fluorouracyl, 5′-desoxy-5-fluorouridine, thioguanine, methotrexate, paclitaxel, docetaxel, topotecan, 9-aminocamptothecin, etoposide, teniposide, mitopodoside, vinblastine, vincristine, vindesine, vinorelbine or a compound of general formula A, B, C or D, where n=0-6, X=—NH2, —OH, —COOH, —O—CO—R—COR*, —NH—CO—R—COR*, where R is an aliphatic carbon chain with 1-6 carbon atoms or a substituted or unsubstituted phenylene group and R*H, phenyl, alkyl with 1-6 carbon atoms.Type: GrantFiled: August 20, 2001Date of Patent: March 23, 2004Inventor: Felix Kratz
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Patent number: 6699876Abstract: Compound of formula (I): wherein: n is 0, 1 or 2, R1 represents (C3-C11)cycloalkyl or (C3-C11)cycloalkylalkyl, R2, R3, R4 and R5 are selected from hydrogen, halogen, alkyl, alkenyl, alkynyl, perhaloalkyl, cycloalkyl, cycloalkylalkyl, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, alkoxycarbonyl, acyloxy, carboxy, nitro, cyano, aminocarbonyl (optionally substituted), and the groups (CH2)p—NaRb and —O—C(O)—N—RaRb, with p, Ra and Rb being as defined in the description, or two adjacent groups R2, R3, R4 and R5 together form a group —O—(CH2)t—O, t being integer from 1 to 3, R60, R70n, R80 and R90 represent a hydrogen atom, a hydroxy group, an alkoxy group, or an O—(CO)—X or O—(CO)—NXW group as defined in the description, R61, R71n, R81, and R91 represent a hydrogen atom, alkyl, alkenyl or alkynyl, or taken in pairs together form a bond or an oxirane group, or two groups together form an oxo group.Type: GrantFiled: November 20, 2002Date of Patent: March 2, 2004Assignee: Les Laboratoires ServierInventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, Ghanem Atassi, John Hickman, Bernard Cimetiere
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Publication number: 20040018988Abstract: Camptothecin derivatives of camptothecin of formula (I) 1Type: ApplicationFiled: March 17, 2003Publication date: January 29, 2004Applicants: Sigma-Tau Industrie Farmaceutiche Riunite S.p.A., Istituo Nazionale per lo Studio e la Cura dei TumoriInventors: Sabrina Dallavalle, Sergio Penco, Claudio Pisano, Franco Zunino
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Publication number: 20030220245Abstract: The invention features polymeric biomaterials formed by nucleophilic addition reactions to conjugated unsaturated groups. These biomaterials may be used for medical treatments.Type: ApplicationFiled: March 24, 2003Publication date: November 27, 2003Inventors: Jeffrey A Hubbell, Donald Elbert, Ronald Schoenmakers
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Publication number: 20030216421Abstract: Cascade esters of camptothecin are described. Processes for making these compounds and for using them in cancer treatment are also described.Type: ApplicationFiled: May 6, 2002Publication date: November 20, 2003Inventors: Zhisong Cao, Beppino C. Giovanella
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Publication number: 20030212087Abstract: Halo-alkyl esters of camptothecin are described. Processes for making these compounds and for using them in cancer treatment, are also described.Type: ApplicationFiled: May 6, 2002Publication date: November 13, 2003Inventors: Zhisong Cao, Beppino C. Giovanella
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Publication number: 20030181476Abstract: A polymorphic form of 9-nitrocamptothecin is provided, the polymorph being characterizable as having an IR spectrum with an absorption centered between 3625 cm−1 and 3675 cm−1 and containing more than a trace of water.Type: ApplicationFiled: February 21, 2002Publication date: September 25, 2003Inventors: Sanjeev Redkar, Ashok Gore
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Publication number: 20030171303Abstract: The present invention provides a method for synthesizing 1-(acyloxy)-alkyl derivatives from 1-acyl-alkyl derivatives, which typically proceeds stereospecifically, in high yield, does not require the use of activated intermediates and/or toxic compounds and is readily amenable to scale-up. The current invention also provides 1-acyl-alkyl derivatives of known drug compounds and methods for synthesizing these 1-acyl-alkyl derivatives.Type: ApplicationFiled: June 11, 2002Publication date: September 11, 2003Inventors: Mark A. Gallop, Jia-Ning Xiang, Fenmei Yao, Laxminarayan Bhat, Cindy X. Zhou
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Publication number: 20030166671Abstract: Amorphous forms of 9-nitrocamptothecin are provided by grinding or pulverizing different polymorphic forms of 9-nitrocamptothecin, and the polymorphic forms are characterizable as having an X-ray powder diffraction pattern with discernable diffraction lines at different °2&thgr; values for Cu K&agr; radiation having a wavelength of 1.5406 Angstrom.Type: ApplicationFiled: October 8, 2002Publication date: September 4, 2003Inventors: Sanjeev Redkar, Ashok Gore
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Patent number: 6608052Abstract: Disclosed are novel aromatic compounds of the formula(I) wherein G, E, W, Ar, X, Y and Z. The compounds are useful for treating diseases or pathological conditions involving inflammation such as chronic inflammatory diseases. Also disclosed are pharmaceutical compositions containing and processes of making such compounds.Type: GrantFiled: April 13, 2001Date of Patent: August 19, 2003Assignee: Boehringer Ingelheim Pharmaceuticals, Inc.Inventors: Steffen Breitfelder, Pier F. Cirillo, John R. Regan
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Publication number: 20030135049Abstract: A process for preparing S type 2-substituted hydroxy-2-indolidinylbutyric ester compound [II]: 1Type: ApplicationFiled: January 8, 2003Publication date: July 17, 2003Applicant: TANABE SEIYAKU CO., LTD.Inventors: Takayuki Kawaguchi, Sumihiro Nomura, Kenji Tsujihara
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Publication number: 20030105109Abstract: Compound of formula (I): 1Type: ApplicationFiled: November 20, 2002Publication date: June 5, 2003Inventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, Ghanem Atassi, John Hickman, Bernard Cimetiere
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Publication number: 20030088101Abstract: A compound has the formula 1Type: ApplicationFiled: June 6, 2002Publication date: May 8, 2003Inventors: Dennis P. Curran, Bom David, Thomas G. Burke
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Patent number: 6534515Abstract: A compound selected from the group consisting of all possible isomers or racemates of a compound of the formula wherein the various substituents are as defined in the specification and its non-toxic, pharmaceutically acceptable salts with acids or bases having anti-anoxic, anti-ischemic and neuronal protective anti-depressant activities.Type: GrantFiled: April 15, 1994Date of Patent: March 18, 2003Assignee: Aventis Pharma S.A.Inventors: François Clemence, Jean-Luc Haesslein, Claude Oberlander
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Patent number: 6509345Abstract: Compound of formula (I): wherein: n is 0, 1 or 2, R1, R2, R3, R4 and R5 are selected from hydrogen, halogen, alkyl, alkenyl, alkynyl, perhaloalkyl, cycloalkyl, cycloalkylalkyl, hydroxy, hydroxyalkyl, alkoxy, alkoxyalkyl, alkoxycarbonyl, acyloxy, carboxy, nitro, cyano, aminocarbonyl (optionally substituted), and the groups (CH2)p—NRaRb and —O—C(O)—N—RaRb, with p, Ra and Rb being as defined in the description, or two adjacent groups R2, R3, R4 and R5 together form a group —O—(CH2)t—O, t being an integer from 1 to 3, R60, R70n, R80 and R90 represent a hydrogen atom, a hydroxy group, an alkoxy group, or an O—(CO)—X or O—(CO)—NXW group as defined in the description, R61, R71n, R81 and R91 represent a hydrogen atom, alkyl, alkenyl or alkynyl, or taken in pairs together form a bond or an oxirane group, or two groups together form an oxo group.Type: GrantFiled: November 5, 2001Date of Patent: January 21, 2003Assignee: Les Laboratoires ServierInventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, Ghanem Atassi, John Hickman, Bernard Cimetiere
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Publication number: 20030004150Abstract: A compound of the formula 1Type: ApplicationFiled: February 6, 2002Publication date: January 2, 2003Inventors: Dennis Bigg, Olivier Lavergne, Francesc Pla Rodas, Jacques Pommier, Gerard Ulibarri, Jerry Harnett, Alain Rolland, Anne-Marie Liberatore, Christophe Lanco, Jean-Bernard Cazaux, Christine Le Breton, Eric Manginot
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Publication number: 20020077325Abstract: Compound of formula (I): 1Type: ApplicationFiled: November 5, 2001Publication date: June 20, 2002Inventors: Gilbert Lavielle, Patrick Hautefaye, Alain Pierre, Ghanem Atassi, John Hickman, Bernard Cimetiere
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Patent number: 6407239Abstract: Aromatic camptothecin ester compounds having the formula: are described as well as formulations containing the compounds. Methods of treating cancer and/or tumors are also disclosed.Type: GrantFiled: December 22, 2000Date of Patent: June 18, 2002Assignee: The Stehlin Foundation For Cancer ResearchInventors: Zhisong Cao, Beppino C. Giovanella
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Patent number: 6376617Abstract: Water soluble polymeric conjugates of camptothecin consist essentially of N-(2-hydroxypropyl)methacryloylamide units linked via a spacer group to a residue of a camptothecin such as irinotecan or its non-soluble metabolite, 7-ethyl-10-hydroxy-camptothecin. The conjugates possess enhance antitumor activity and decreased toxicity with respect to the free drug. A process for their preparation and the pharmaceutical compositions containing them are also described.Type: GrantFiled: June 3, 1999Date of Patent: April 23, 2002Assignee: Pharmacia & Upjohn S.p.A.Inventors: Francesco Angelucci, Gabriele Fachin, Valeria Caiolfa, Antonino Suarato
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Publication number: 20020045637Abstract: A compound selected from the group consisting of all possible isomers or racemates of a compound of the formula 1Type: ApplicationFiled: April 15, 1994Publication date: April 18, 2002Inventors: FRANCOIS CLEMENCE, JEAN-LUC HAESSLEIN, CLAUDE OBERLANDER
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Publication number: 20020032331Abstract: Water soluble polymeric conjugates of camptothecin consist essentially of N-(2-hydroxypropyl)methacryloylamide units linked via a spacer group to a residue of a camptothecin such as irinotecan or its non-soluble metabolite, 7-ethyl-10-hydroxy amptothecin. The conjugates possess enhance antitumor activity and decreased toxicity with respect to the free drug. A process for their preparation and the pharmaceutical compositions containing them are also described.Type: ApplicationFiled: June 3, 1999Publication date: March 14, 2002Inventors: FRANCESCO ANGELUCCI, GABRIELE FACHIN, VALERIA CAIOLFA, ANTONINO SUARATO
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Publication number: 20020019343Abstract: Conjugates of transferrin, albumin and polyethylence glycol consisting of native or thiolated transferrin or albumin or of polyethylene glycol (MW between approximately 5,000 and 20,0000) with at least one HS—, HO— or H2N group and cytostatic compounds derived through maleinimide or N-hydroxysuccinimide ester compounds, such as doxorubicin, daunorubicin, epirubicin, idarubicin, mitoxandrone, chloroambucil, melphalan, 5-fluorouracyl, 5′-desoxy-5-fluorouridine, thioguanine, methotrexate, paclitaxel, docetaxel, topotecan, 9-aminocamptothecin, etoposide, teniposide, mitopodoside, vinblastine, vincristine, vindesine, vinorelbine or a compound of general formula A, B, C or D, where n=0-6, X=—NH2, —OH, —COOH, —O—CO—R—COR*, —NH—CO—R—COR*, where R is an aliphatic carbon chain with 1-6 carbon atoms or a substituted or unsubstituted phenylene group and R* H, phenyl, alkyl with 1-6 carbon atoms.Type: ApplicationFiled: August 20, 2001Publication date: February 14, 2002Inventor: Felix Kratz