Tricyclo Ring System Patents (Class 564/427)
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Publication number: 20030018218Abstract: A novel arylamine compound represented by the following general formula (1): 1Type: ApplicationFiled: July 12, 2002Publication date: January 23, 2003Applicant: Idemitsu Kosan Co., Ltd.Inventors: Chishio Hosokawa, Masakazu Funahashi
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Publication number: 20020182439Abstract: This invention relates to fluorene compounds and their use as a hole transport material in an electro-luminescence device.Type: ApplicationFiled: May 1, 2001Publication date: December 5, 2002Inventors: Yu-Tai Tao, Chung-Wen Ko
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Publication number: 20020173672Abstract: An improved method is described for making 9-deoxy-PGF1-type compounds. In contrast to the prior art, the method is stereoselective and requires fewer steps than the known methods for making these compounds.Type: ApplicationFiled: July 1, 2002Publication date: November 21, 2002Applicant: UNITED THERAPEUTICS CORPORATIONInventors: Robert M. Moriarty, Raju Penmasta, Liang Guo, Munagala S. Rao, James P. Staszewski
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Publication number: 20020137969Abstract: A novel arylamine compound represented by the following general formula (1): 1Type: ApplicationFiled: September 5, 2001Publication date: September 26, 2002Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Chishio Hosokawa, Masakazu Funahashi
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Patent number: 6420413Abstract: A compound selected from those of formula (I): wherein: denotes single bond or double bond, n is integer from 1 to 6 inclusive, R1, and R2 represent a group selected from hydrogen, linear or branched (C1-C6)-alkyl, aryl, arylalkyl, cycloalkyl, cycloalkylalkyl, alkenyl, alkynyl, heterocycloalkyl, heterocycloalkylalkyl, heteroaryl, and heteroarylalkyl, X represents a group selected from —CH═CH—, oxygen, S(O)m wherein m is integer from 0 to 2 inclusive, and NR3 wherein R3 represents a group as defined in the description, Y represents CH or CH2 depending on whether denotes single bond or double bond, or may have the additional meaning of oxygen when X represents oxygen, T represents monocyclic or polycyclic (C3-C10)cycloalkyl optionally containing within the ring system oxygen, selenium, S(O)p, NR3, or SiR4R5 wherein p, R3, R4, and R5 are as defined in the description, its isomers and addition salts thereof with a pharmaceutically-accepType: GrantFiled: April 12, 2001Date of Patent: July 16, 2002Assignee: Les Laboratories ServierInventors: Jean-Louis Peglion, Aimée Dessinges, Bertrand Goument, Mark Millan, Françoise Lejeune, Mauricette Brocco
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Patent number: 6417402Abstract: The present invention relates to squaraine dye containing terminal aminoanthracene or acridine groups and to a process for preparation thereof.Type: GrantFiled: September 26, 2001Date of Patent: July 9, 2002Assignee: Council of Scientific and Industrial ResearchInventors: Suresh Das, George Thomas Kakkudiyil, Biju Vasudevan Pillai, Santosh Unni, Suresh Velate
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Publication number: 20020087025Abstract: An improved method is described for making 9-deoxy-PGF1-type compounds. In contrast to the prior art, the method is stereoselective and requires fewer steps than the known methods for making these compounds.Type: ApplicationFiled: February 15, 2002Publication date: July 4, 2002Applicant: UNITED THERAPEUTICS CORPORATIONInventors: Robert M. Moriarty, Raju Penmasta, Liang Guo, Munagala S. Rao, James P. Staszewski
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Patent number: 6387544Abstract: Organic light emitting devices comprising a heterostructure for producing electroluminescence having a hole transporting layer with a glass structure. The hole transporting layer comprises a compound having a symmetric molecular structure. The end groups of the symmetric molecule are hole transporting diaryl amine moieties.Type: GrantFiled: December 2, 1998Date of Patent: May 14, 2002Assignees: The Trustees of Princeton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Loy Douglas, Stephen R. Forrest, Bryan E. Koene, Diarmuid O'Brien
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Publication number: 20010008711Abstract: An organic light-emitting device comprising a light-emitting layer or a plurality of organic compound thin layers including a light-emitting layer formed between a pair of electrodes, wherein at least one layer comprises at least one kind of compound represented by the following formula (1): 1Type: ApplicationFiled: January 8, 2001Publication date: July 19, 2001Inventor: Tatsuya Igarashi
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Patent number: 6187543Abstract: The present invention relates, in general, to tristetraprolin (TTP) and, in particular, to methods of modulating levels of tumor necrosis factor &agr; (TNF&agr;) using TTP or nucleic acid sequences encoding same. The invention further relates to methods of screening for compounds for their ability to inhibit TNF&agr; biosynthesis.Type: GrantFiled: April 19, 1999Date of Patent: February 13, 2001Assignee: Duke UniversityInventor: Perry J. Blackshear
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Patent number: 5945566Abstract: New amino compounds of formula: ##STR1## wherein n and Y are as defined in the description, in racemic form or in the form of optical isomers.and addition salts thereof with pharmaceutically acceptable acids.Those compounds may be used as medicaments.Type: GrantFiled: April 9, 1998Date of Patent: August 31, 1999Assignee: Adir et CompagnieInventors: Jean-Louis Peglion, Mark Millan
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Patent number: 5912386Abstract: The present invention relates to compounds of the formula (I)R.sup.1 --NH--B--NH--R.sup.2 (I),whereinR.sup.1 and R.sup.2 independently of one another denote an unsubstituted or substituted radical of the formula ##STR1## and B represents an unsubstituted or substituted cycloalkylene-containing bridge member, which are suitable for bulk dyeing of plastics.Type: GrantFiled: February 6, 1998Date of Patent: June 15, 1999Assignee: Bayer AktiengesellschaftInventors: Dietmar Kalz, Karl-Heinz Reinhardt, Helmut Blaser
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Patent number: 5840984Abstract: Odor formation during storage of (hydrocarbylthio)aromatic amines due to formation and release of odoriferous sulfur-containing species such as dihydrocarbyldisulfides, is suppressed. To accomplish this, a small amount of N,N-dihydrocarbylhydroxylamine odor-inhibitor (e.g., N,N-diethylhydroxylamine) is blended with the (hydrocarbylthio)aromatic amine. This enables products such as a mixture of 3,5-di(methylthio)-2,4-diaminotoluene and 3,5-di(methylthio)-2,6-diaminotoluene) to be stored for long periods of time with significantly reduced formation and release of odoriferous sulfur-containing species.Type: GrantFiled: June 23, 1997Date of Patent: November 24, 1998Assignee: Albemarle CorporationInventors: Gregory H. Lambeth, Paul L. Wiggins, William R. Brown
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Patent number: 5840980Abstract: A diamine compound of the following formula (1): ##STR1## wherein R.sub.1 is a hydrogen atom, a lower alkyl group or a lower alkoxy group, each of A.sub.1, A.sub.2 and A.sub.3 which are independent of one another, is a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a group of the following formula (2): ##STR2## wherein R.sub.1 is as defined above, and X is a substituted or unsubstituted arylene group or a substituted or unsubstituted heterocyclic bivalent group.Type: GrantFiled: July 24, 1997Date of Patent: November 24, 1998Assignee: Hodogaya Chemical Co., Ltd.Inventors: Mitsutoshi Anzai, Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi
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Patent number: 5808155Abstract: An electrophotographic photoconductor having an electroconductive support and a photoconductive layer formed thereon containing as a photoconductive material at least one carbonate compound of formula (I): ##STR1## wherein R.sup.1 and R.sup.2 each is hydrogen, an alkyl group which may have a substituent, an aryl group which may have a substituent, or a condensed polycyclic group; Y is a bivalent arylene group which may have a substituent, ##STR2## in which Ar.sup.1 and Ar.sup.2 each is an arylene group which may have a substituent, R.sup.3 and R.sup.4 each is hydrogen, an alkyl group which may have a substituent or an aryl group which may have a substituent, and l is an integer of 1 or 2; and R.sup.1 and R.sup.2, or R.sup.1 and Y may independently form a ring; X is an alkyl group which may have a substituent or an aryl group which may have a substituent; m is an integer or 0 or 1; and n is an integer of 0 to 6.Type: GrantFiled: March 6, 1997Date of Patent: September 15, 1998Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Chiaki Tanaka
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Patent number: 5770763Abstract: Novel difunctionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ring; and X and Y are carboxyl, amino, alcohol, isocyanate, acid halide, or bis-acyl halide groups. Exemplary difunctional bitricyclodecatriene monomers are ?2,2'-bidicyclo?2.4.0!octa-1,3,5-triene!-5,5'-dicarboxylic acid (BXTA) and ?2,2'-bitricyclo?6.2.0.0!deca-1,3,(6),7-triene!-7,7'-dicarboxylic acid (QXTA). The difunctionalized bitricyclodecatriene monomers can form part of a polymer backbone chain in which the multiple butane ring functionalities can be easily opened to produce strong, three-dimensional covalent bond crosslinking between polymer chains. The crosslinking can be induced simply by heating the polymer to a temperature in excess of 250.degree. C.Type: GrantFiled: August 30, 1996Date of Patent: June 23, 1998Assignee: The Board of Regents of the Univ. of MichiganInventors: David C. Martin, Jeffrey S. Moore, Larry J. Markoski, Kenneth A. Walker, Gary E. Spilman
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Patent number: 5750789Abstract: An unsaturated imide compound represented by formula (1): ##STR1## wherein Q is an alicyclic structure-containing hydrocarbon group having 4-20 carbon atoms; each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.i and R.sub.j represents a hydrogen atom, a halogen atom, a hydrocarbon group having 1-6 carbon atoms or a halogen-containing hydrocarbon group having 1-6 carbon atoms; each of a, b, c, d, e and f represents an integer of 0 to 4 satisfying a+b.ltoreq.4, c+d.ltoreq.4 and e+f.ltoreq.4 and D represents a divalent organic group having 2-24 carbon atoms and an ethylenically unsaturated double bond, a process for producing the unsaturated imide compound of formula (1) and intermediates for producing the unsaturated imide compound of formula (1). The unsaturated imide compound of formula (1) is well soluble in organic solvents and can give cured products excellent in heat resistance, low water absorption and flexibility.Type: GrantFiled: September 29, 1995Date of Patent: May 12, 1998Assignee: Sumitomo Chemical Company LimitedInventors: Yasuhiro Hirano, Yasuhiro Endo, Kazuo Takebe, Mitsuhiro Shibata, Shuichi Kanagawa, Yutaka Shiomi, Masatsugu Akiba, Shinichiro Kitayama
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Patent number: 5726208Abstract: New compounds of formula: ##STR1## wherein: --A--D--E, X, n, Y and Z are as defined in the description, in racemic form and in the form of optical isomers,and their addition salts with pharmaceutically acceptable acids.Those compounds may be used as medicaments.Type: GrantFiled: October 11, 1996Date of Patent: March 10, 1998Assignee: Adir et CompagnieInventors: Jean-Louis Peglion, Bertrand Goument, Jean-Christophe Harmange, Joel Vian, Aimee Dessinges, Mark Millan, Valerie Audinot
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Patent number: 5705533Abstract: 10-thio-substituted 1,8-dihydroxy-9(10H) anthracenones, therapeutic compositions containing at least one of the 10-thio-substituted 1,8-dihydroxy-9(10H) anthracenones of the invention and methods of treating inflammatory conditions are provided.Type: GrantFiled: June 7, 1995Date of Patent: January 6, 1998Assignee: Teva Pharmaceutical Industries Ltd.Inventors: Klaus Muller, Hsu-Shan Huang, Wolfgang Wiegrebe
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Patent number: 5672728Abstract: An electrophotographic photoconductor comprises an electroconductive substrate and a photoconductive layer formed thereon comprising as an effective component at least one pyrenylamine derivative of formula (I): ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, w, j, k, l, m and n are specifically defined in the specification. Furthermore, a novel pyrenylamine derivative for use in the above electrophotographic photoconductor, an aldehyde compound, which is an intermediate for producing the pyrenylamine derivative, and methods of preparing the pyrenylamine derivative and the aldehyde compound are disclosed.Type: GrantFiled: July 11, 1996Date of Patent: September 30, 1997Assignee: Ricoh Company, Ltd.Inventors: Chiaki Tanaka, Masaomi Sasaki, Tamotsu Aruga, Tomoyuki Shimada, Hiroshi Adachi
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Patent number: 5672757Abstract: N-methyldeacetylcolchiceinamide derivatives represented by the formula ##STR1## wherein R denotes a residue obtained by removing COOH from a C.sub.3 -C.sub.7 sugar carboxylic acid, and hydroxyl groups present in the residue may properly be protected with a protecting group for a hydroxyl group.The N-methyldeacetylcolchiceinamide derivatives have less toxicity and strong effect for inhibiting proliferation of tumor cells, and are expected to be used as a carcinostatic.Type: GrantFiled: March 1, 1996Date of Patent: September 30, 1997Assignee: Ohgen Research Laboratories, Ltd.Inventor: Kiyoshi Akiyama
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Patent number: 5663180Abstract: A class of 1,2-diarylcyclopentenyl compounds is described for use in treating inflammation and inflammation-related disorders. Compounds of particular interest are defined by Formula III: ##STR1## wherein each of R.sup.1 and R.sup.2 is independently selected from alkyl, hydrido, hydroxyalkyl, halo, haloalkyl, alkoxycarbonyl and carboxyl; wherein R.sup.5 is selected from alkylsulfonyl, haloalkylsulfonyl and sulfamyl; and wherein B is phenyl or pyridyl, wherein B is optionally substituted at a substitutable position with alkyl, halo, alkylthio, cyano, haloalkyl, alkoxy, hydroxyalkyl and alkoxyalkyl; or a pharmaceutically-acceptable salt thereof.Type: GrantFiled: July 15, 1994Date of Patent: September 2, 1997Assignee: G.D. Searle & Co.Inventors: David B. Reitz, Jinglin Li
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Patent number: 5654481Abstract: There is provided an amine compound represented by formula (1): ##STR1## wherein Ar.sub.1 represents a substituted or unsubstituted aryl group; Ar.sub.2 represents a substituted or unsubstituted phenylene group, a substituted or unsubstituted naphthylene group, a substituted or unsubstituted biphenylene group or a substituted or unsubstituted anthrylene group; R.sub.1 represents a hydrogen atom, a lower alkyl group or a lower alkoxy group; X represents a hydrogen atom, a substituted or unsubstituted alkyl group, or a substituted or unsubstituted aryl group; and Y represents a substituted or unsubstituted aryl group, or a group represented by formula (2) or (3) described in the specification.Type: GrantFiled: October 31, 1995Date of Patent: August 5, 1997Assignee: Hodogaya Chemical Co., Ltd.Inventors: Mitsutoshi Anzai, Atsushi Takesue, Takanobu Watanabe, Chieko Inayoshi
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Patent number: 5631404Abstract: An electrophotographic photoconductor includes an electroconductive support and a photoconductive layer formed thereon containing a diamine compound represented by formula (I): ##STR1## wherein R.sup.1, R.sup.2, and R.sup.3 each is independently a substituted or unsubstituted alkyl group or aryl group; R.sup.4 is hydrogen, an alkyl group or an alkoxyl group; n is an integer of 1 to 3; and ##STR2## is a substituted or unsubstituted bivalent arylene group or a bivalent heterocyclic group. This diamine compound is useful as a photoconductive material for electrophotographic photoconductors.Type: GrantFiled: June 1, 1995Date of Patent: May 20, 1997Assignees: Ricoh Company, Ltd., Hodogaya Chemical Co., Ltd.Inventors: Mitsutoshi Anzai, Yasuo Murakami, Atsushi Takesue, Masaomi Sasaki, Tomoyuki Shimada, Tamotsu Aruga, Masafumi Ohta
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Patent number: 5616810Abstract: The present invention is directed to a process for the preparation of deactivated anilines, which comprises the step of reacting a compound of formula ( I ) ##STR1## with a dialkylamide in the presence of a base at elevated temperature, in which:R.sub.1 is chosen from groups whose anions (R.sub.1.sup.-) constitute leaving groups;R.sub.2 and R.sub.4, which may be the same or different, are chosen from hydrogen, hydrocarbon chains, halogens and groups which are electron-attracting (EAG);R.sub.3 is chosen from hydrocarbon chains, halogens and groups which are electron-attracting, preferably through an inductive effect rather than a mesomeric effect;with the proviso that at least one of the groups R.sub.2, R.sub.3, and R.sub.4 is electron-attracting through an inductive effect.A second embodiment of the present invention is directed to a process for the dealkylation of deactivated anilines which comprises the steps of free radical halogenation of the benzyl carbon followed by hydrogenation.Type: GrantFiled: March 28, 1995Date of Patent: April 1, 1997Assignee: Rhone-Poulenc ChimieInventor: Jean-Marc Ricca
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Patent number: 5596020Abstract: This invention relates to a class of novel amino bi- and tri-carbocyclic alkane compounds having bis-aryl substitution which exhibit squalene synthase inhibition properties. The bi- and tri-carbocyclic alkane ring contains an amino group and the ring is further linked or bridged to two mono- and/or bicyclic rings. Compounds of this invention reduce levels of serum cholesterol in the body without significantly reducing mevalonic metabolite synthesis. This invention relates also to pharmacological compositions and method of treatment for lowering serum cholesterol levels using the compounds of this invention.Type: GrantFiled: December 7, 1994Date of Patent: January 21, 1997Assignee: Rhone-Poulenc Rorer Pharmaceuticals Inc.Inventors: Robert L. Morris, Kent W. Neuenschwander, Keith S. Learn, Anthony C. Scotese
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Patent number: 5574173Abstract: Disclosed are compounds of Formula I: ##STR1## or a pharmaceutically acceptable salt or solvate thereof, wherein: R.sup.4 is alkenyl, alkoxy, or --OH.Also disclosed are pharmaceutical compositions containing compounds of Formula I, methods for inhibiting tumor necrosis factor-.alpha., and methods for treating septic shock, inflammation, or allergic disease.Type: GrantFiled: December 6, 1993Date of Patent: November 12, 1996Assignee: Schering CorporationInventors: Pauline C. Ting, Richard J. Friary, Wing C. Tom, Joe F. Lee, Vera A. Seidl
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Patent number: 5550293Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.Type: GrantFiled: April 10, 1995Date of Patent: August 27, 1996Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga
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Patent number: 5538986Abstract: Disclosed are compounds of Formula I: ##STR1## or a pharmaceutically acceptable salt or solvate thereof, wherein: R.sup.3 is alkyl, alkenyl, alkynyl, aryl, alkaryl, aralkyl, cycloalkyl, acyloxymethyl, alkoxy, alkoxymethyl, or alkyl substituted with cycloalkyl;R.sup.4 is H, alkyl, alkenyl, alkoxy, or --OH.Also disclosed are pharmaceutical compositions containing compounds of Formula I, methods for inhibiting tumor necrosis factor-.alpha. and methods for treating septic shock, inflammation, or allergic disease by administering a compound of Formula I.Type: GrantFiled: December 6, 1993Date of Patent: July 23, 1996Assignee: Schering CorporationInventors: Pauline C. Ting, Daniel M. Solomon, Richard J. Friary, Frank J. Villani, John J. Piwinski, Joe F. Lee, Dhiru B. Vashi
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Patent number: 5442122Abstract: The present invention is directed to a compound represented by the following formula (I), ##STR1## and a linker for peptide synthesis using the above compound. When the linker of the present invention is used for the solid-phase peptide synthesis, it is possible to synthesize those peptides which are sensitive to acid and difficult to synthesize by conventional methods. Also, side reactions can be prevented, and the desired product is produced at a high purity because cleavage can be achieved under milder conditions or in shorter times. In other words, efficient peptide synthesis is possible.Type: GrantFiled: November 3, 1993Date of Patent: August 15, 1995Assignee: Shimadzu CorporationInventors: Masaki Noda, Kiyoshi Nokihara
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Patent number: 5401882Abstract: The present invention is directed to a process for the preparation of deactivated anilines, which comprises the step of reacting a compound of formula (I) ##STR1## with a dialkylamide in the presence of a base at elevated temperature, in which:R.sub.1 is chosen from groups whose anions (R.sub.1.sup.-) constitute leaving groups;R.sub.2 and R.sub.4, which may be the same or different, are chosen from hydrogen, hydrocarbon chains, halogens and groups which are electron-attracting (EAG);R.sub.3 is chosen from hydrocarbon chains, halogens and groups which are electron-attracting, preferably through an inductive effect rather than a mesomeric effect; with the proviso that at least one of the groups R.sub.2, R.sub.3, and R.sub.4 is electron-attracting through an inductive effect.A second embodiment of the present invention is directed to a process for the dealkylation of deactivated anilines which comprises the steps of free radical halogenation of the benzyl carbon followed by hydrogenation.Type: GrantFiled: November 24, 1993Date of Patent: March 28, 1995Assignee: Rhone-Poulenc ChimieInventor: Jean-Marc Ricca
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Patent number: 5382692Abstract: An electrophotographic photoconductor comprising an electroconductive support, and a photoconductive layer formed thereon comprising at least one tertiary amine compound having a condensed polycyclic hydrocarbon group of formula (I): ##STR1## wherein A.sup.1 and A.sup.2 each independently represent an unsubstituted or substituted alkyl group or aryl group, and Ar represents an unsubstituted or substituted condensed polycyclic hydrocarbon group. Furthermore, novel tertiary amine compounds having a condensed polycyclic hydrocarbon group are disclosed.Type: GrantFiled: February 9, 1993Date of Patent: January 17, 1995Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Tamotsu Aruga
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Patent number: 5356935Abstract: A series of dihydrophenanthreneones and tetrahydrophenanthreneones are useful as inhibitors of 5.alpha.-reductase, and a series of hexahydrophenanthreneones are useful as intermediates for preparing such pharmaceuticals.Type: GrantFiled: December 13, 1993Date of Patent: October 18, 1994Assignee: Eli Lilly and CompanyInventors: James E. Audia, Thomas C. Britton, Patrick G. Spinazze
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Patent number: 5334752Abstract: Novel difunctionalized cyclobutabenzene monomers of the general formula: ##STR1## wherein Z can be hydrogens or a cyclobutane ting; and X and Y are carbox amino, alcohol, isocyanate, acid halide, or bis-acyl fluoride groups. In a particularly preferred embodiment, the cyclobutabenzene derivative is 1,2-dihydrocyclobutabenzene-3,6-carboxylic acid. The difunctionalized cyclobutabenzene monomer can form part of a polymer backbone chain, but has an additional functionality, the butane ring, which can be easily opened to produce strong, covalent bond crosslinking between polymer chains. The crosslinking can be induced simply by heating the polymer to a temperature in excess of 300.degree. C.Type: GrantFiled: July 1, 1992Date of Patent: August 2, 1994Assignee: The Board of Regents acting for and on behalf of University of MichiganInventors: David C. Martin, Jeffrey S. Moore, Larry J. Markoski, Kenneth A. Walker
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Patent number: 5326786Abstract: Compounds represented by the formula ##STR1## wherein R.sub.1 and R.sub.2 each represent a hydrogen atom or a protective group for a hydroxyl group, or R.sub.1 and R.sub.2 combine to represent a protective group for hydroxyl groups, andR.sub.3 represents CH.sub.3 O-- or CH.sub.3 NH--.These compounds exhibit a strong effect to inhibit proliferation of cancer cells and are expected to be used as a carcinostatic agent.Type: GrantFiled: April 23, 1993Date of Patent: July 5, 1994Assignee: Ohgen Research Laboratories Ltd.Inventor: Kiyoshi Akiyama
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Patent number: 5216178Abstract: Novel aminoalkylthiodibenzoxepins, physiologically tolerable acid addition salts thereof, a method of preparing same, pharmaceutical and veterinary preparations including same and methods of treating by administering same are disclosed. These compounds are useful as analgesic, antidepressant and anticonvulsant agents. A process for selectively reducing olefins by alkaline earth metals in loweralkanols is also disclosed.Type: GrantFiled: August 15, 1991Date of Patent: June 1, 1993Assignee: Hoechst-Roussel Pharmaceuticals IncorporatedInventors: Helen H. Ong, Vernon B. Anderson, James A. Profitt
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Patent number: 5202486Abstract: Tetrahydronaphthaleneamine derivatives having the formula ##STR1## wherein R, R', R.sub.1 and R.sub.2 are as defined herein, are novel calcium channel blockers.Type: GrantFiled: July 31, 1990Date of Patent: April 13, 1993Assignee: E. R. Squibb & Sons, Inc.Inventors: Joel C. Barrish, Steven H. Spergel
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Patent number: 5189065Abstract: The use of products of formula (I) is described, wherein X and Y represent hydrogen, hydroxy or alkoxy; and R.sub.1 and R.sub.2 represent H, alkyl, alkenyl or alkynyl, arylalkyl, acyl or R.sub.1 and R.sub.2 together with nitrogen form a heterocycle for preparing an antitumoral drug.Type: GrantFiled: October 17, 1991Date of Patent: February 23, 1993Assignee: Roussel UclafInventors: Jorg Czech, Hans H. Sedlacek, Lucien Nedelec, Jacques Guillaume, Christian Marchandeau
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Patent number: 5171915Abstract: It is disclosed that aromatic compounds can be alkylated with mono-olefinic HVI-PAO dimer in contact with an acidic catalyst to produce novel alkylated aromatic compositions. It has been found that the novel HVI-PAO dimer alkylated aromatic compositions exhibit an extraordinary combination of properties relating to low viscosity with high viscosity index and low pour point which renders them very useful as lubricant basestock. Further, it has been found that the novel alkylaromatic compositions of the present invention show improved oxidative stability. Depending upon the substituent groups on the aromatic nucleus, useful lubricant additives can be prepared for improved antiwear, antioxidant and other properties. HVI-PAO dimer is prepared as a product or by-product from 1-alkene oligomerization using reduced chromium oxide on solid support.Type: GrantFiled: February 21, 1989Date of Patent: December 15, 1992Assignee: Mobil Oil CorporationInventors: Thomas R. Forbus, Bruce P. Pelrine
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Patent number: 5166438Abstract: A charge transporting material comprising a 1,3-pentadiene derivative having formula (I):A--CH.dbd.CH--CH.dbd.CH--CH.sub.2 --A (I)wherein A represents a 9-anthryl group which may have a substituent, a N-substituted carbazolyl group which may have a substituent, a N-substituted phenothiazinyl group which may have a substituent or ##STR1## in which Ar represents an arylene group which may have a substituent, R.sup.1 and R.sup.2 each represent an alkyl group which may have a substituent, an aralkyl group which may have a substituent, or an aryl group which may have a substituent; an electrophotographic photoconductor comprising an electroconductive support and a photoconductive layer formed thereon, which comprises as an effective component at least one of the 1,3-pentadiene derivatives of the above formula (I); and novel 1,3-pentadiene derivatives of the formula (I), provided that in the formula (I), R.sup.1 and R.sup.2 cannot be a methyl group at the same time, are disclosed.Type: GrantFiled: August 23, 1991Date of Patent: November 24, 1992Assignees: Ricoh Company, Ltd., Hodogaya Chemical Co., Ltd.Inventors: Mitsuru Hashimoto, Masaomi Sasaki, Tomoyuki Shimada, Nobuo Suzuki, Takayuki Sakai, Susumu Suzuka
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Patent number: 5159087Abstract: Aromatic diolefinic compounds including 1,4-divinylbenzene derivatives, which are useful not only as organic photoconductive materials for electrophotography, but also as intermediates for producing diethyl aromatic compounds which are also useful as organic photoconductive materials for electrophotography, the aromatic diethyl compounds, an electrophotographic photoconductor containing any of the above aromatic diethyl compounds in a photosensitive layer thereof, and a charge transporting medium containing any of the aromatic diethyl compound are disclosed.Type: GrantFiled: January 17, 1991Date of Patent: October 27, 1992Assignee: Ricoh Company, Ltd.Inventors: Tomoyuki Shimada, Masaomi Sasaki, Mitsuru Hashimoto
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Patent number: 5153227Abstract: The invention concerns novel pharmaceutical compositions for use in the treatment of certain complications of diabetes and galactosemia and which contain a nitromethane derivative (or its non-toxic salt) as active ingredient. The nitromethane derivatives are inhibitors of the enzyme aldose reductase. Many of the inhibitors are novel and are provided, together with processes for their manufacture and use, as further features of the invention.Type: GrantFiled: February 6, 1989Date of Patent: October 6, 1992Assignee: Imperial Chemical Industries PLCInventors: Steven P. Brown, Anthony L. Cooper, Jethro L. Longridge, Jeffrey J. Morris, John Preston
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Patent number: 5081304Abstract: A series of isotopically-labeled fluorenamine, dibenzofuranamine, and dibenzothiophenamine derivatives useful for diagnosing neurodegenerative disorders in mammals wherein a detectable amount of an isotope-labeled fluorenamine, dibenzofuranamine, or dibenzothiophenamine derivative is used.Type: GrantFiled: July 10, 1990Date of Patent: January 14, 1992Assignee: Warner-Lambert CompanyInventor: Walter H. Moos
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Patent number: 5055414Abstract: Certain phenalenimine fluorescent compounds represented by the structure ##STR1## wherein R' and R" are independently hydrogen, alkyl, cycloalkyl, aryl or a heterocycle, or R' comprises the carbon and heteroatoms which forms a fused ring with the compound nucleus, are useful in biomedical and analytical determinations. These compounds can be used for staining cells, as well as for the determination of various analytes found in human or animal biological fluids. Such determination can be carried out in solution or by using dry analytical elements. The fluorescent compounds can be reacted with quinone nuclei to form reducible compounds which are also useful in analytical methods. In addition, the compounds can be incorporated into what are known as "loadable" latex particles to form detectable labels and biological reagents.Type: GrantFiled: July 5, 1988Date of Patent: October 8, 1991Assignee: Eastman Kodak CompanyInventors: Bruce E. Babb, Fred T. Oakes
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Patent number: 5041673Abstract: This invention relates to novel derivatives of tetralin, to the processes for their preparation, to their use as aminopeptidase inhibitors and to their end-use application as immunomodulators and as analgesic agents.Type: GrantFiled: January 4, 1990Date of Patent: August 20, 1991Assignee: Merrell Dow Pharmaceuticals Inc.Inventors: Hugues d'Orchymont, Celine Tarnus
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Patent number: 5017724Abstract: Novel hydrofluorene derivatives and salts thereof represented by the formula (1) which possess excellent activities for improving anoxemic and hypoxic symptoms and syndromes accompanied therewith, therefore said derivatives are useful as cerebral activators, preventive agents for arrhythmia and heart failure caused by the shortage of oxygen and others. Furthermore, said hydrofluorene derivatives and salts thereof possess actions for scavenging active oxygen radicals, therefore, the derivatives are useful prophylactic and treating agents for various disturbances and diseases caused by the excessive formation of active oxygen radicals. In addition to the above, the hydrofluorene derivatives are useful as anti-oxidative agents for fats and oils.Type: GrantFiled: June 4, 1990Date of Patent: May 21, 1991Assignee: Otsuka Pharmaceutical Co., Ltd.Inventors: Yasuo Oshiro, Tatsuyoshi Tanaka, Yoji Sakurai, Seiji Sato
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Patent number: 5015770Abstract: (Hydrocarbylthio)aromatic amines are prepared by reacting an aromatic amine, such as an aminobenzene, with a hydrocarbyl disulfide, such as an alkyl disulfide, in the presence of iodine, iodine monochloride, or iodine monobromide as a catalyst.Type: GrantFiled: July 16, 1990Date of Patent: May 14, 1991Assignee: Ethyl CorporationInventor: Gordon G. Knapp
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Patent number: 5011939Abstract: A hydroxy arylamine compound is disclosed represented by the formula: ##STR1## wherein: m is 0 or 1,Z is selected from the group consisting of: ##STR2## n is 0 or 1, Ar is selected from the group consisting of: ##STR3## R is selected from the group consisting of --CH.sub.3, --CH.sub.2 H.sub.5, --C.sub.3 H.sub.7, and --C.sub.4 H.sub.9,Ar' is selected from the group consisting of: ##STR4## X is selected from the group consisting of: ##STR5## s is 0, 1 or 2, the dihydroxy arylamine compound being free of any direct conjugation between the --OH groups and the nearest nitrogen atom through one or more aromatic rings. The dihydroxy arylamine compound may be employed in an electrophotographic imaging member and the member may be used in an electrophotographic imaging process.Type: GrantFiled: May 23, 1989Date of Patent: April 30, 1991Assignee: Xerox CorporationInventors: William W. Limburg, John F. Yanus, Dale S. Renfer, Richard L. Schank, Beng S. Ong
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Patent number: 4999441Abstract: Tetrakis(dialkylamino)aromatics Ia to Ic ##STR1## where the radicals A may be identical or different and are n-C.sub.1 -C.sub.6 -alkyl and the radicals R may be identical or different and are hydrogen or C.sub.1 -C.sub.6 -alkyl, and their charge transfer complexes with electron acceptors, and the preparation of Ia to Ic from the corresponding N-unsubstituted amines by alkylation with A'--CHO (where A'.dbd.H or N-C.sub.1 -C.sub.5 -alkyl) and reduction with NaBH.sub.3 CN.The charge transfer complexes of Ia and Ic are used to prepare electrically conductive polymers.Type: GrantFiled: April 17, 1989Date of Patent: March 12, 1991Assignee: Max-Planck-Gesellschaft zur Foerderung der Wissenschaften e.V.Inventors: Heinz A. Staab, Karin Elbl
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Patent number: 4904688Abstract: The present invention deals with dibenzo-oxocin-, dibenzo-thiocin-, dibenzo-azocin- and dibenzocyclo-octenamine derivatives suitable for use as antipsychotic compounds without extra-pyrimidal side-effects.Type: GrantFiled: March 8, 1989Date of Patent: February 27, 1990Assignee: Akzo N.V.Inventors: Duncan R. Rae, James Cairns