Patents Examined by Ann M. Kessinger
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Patent number: 5922728Abstract: Compounds of formula (I), wherein: the symbol represents a single or a double bond; R is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; R.sub.f and R'.sub.f, each independently, are C.sub.1 -C.sub.4 alkyl groups substituted by one or more fluorine atoms; and R.sub.1 and R.sub.2, each independently, are selected from: a hydrogen atom; a phenyl group; a C.sub.1 -C.sub.4 alkyl group unsubstituted or substituted by one or more fluorine atoms; a halogen atom; a cyano (CN) group; a group OR.sub.4, wherein R.sub.4 is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; a group SR.sub.5, wherein R.sub.5 is a hydrogen atom or a C.sub.1 -C.sub.4 alkyl group; and a group COR.sub.6, wherein R.sub.6 is a group OR.sub.4 in which R.sub.4 is as defined above or a C.sub.1 -C.sub.4 alkyl group unsubstituted or substituted by one or more fluorine atoms. They are useful as testosterone 5a-reductase inhibitors.Type: GrantFiled: May 13, 1997Date of Patent: July 13, 1999Assignee: Pharmacia & Upjohn, S.p.A.Inventors: Achille Panzeri, Marcella Nesi, Enrico Di Salle
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Patent number: 5922727Abstract: The present invention relates to novel compound of general formula (I) and pharmaceutically acceptable salts thereof, and process for the preparation of such derivatives and to pharmaceutical compositions containing the same as active ingredients. ##STR1## wherein R.sub.1, R.sub.2, and R.sub.3 represents independently hydrogen atom, halogen atom, C.sub.1 -C.sub.10 alkyl, C.sub.1 -C.sub.10 thioalkyl, C.sub.3 -C.sub.8 optionally substituted cyclicalkyl, unsaturated alkyl, substituted alkyl hydroxyl or aryl hydroxyl, C.sub.1 -C.sub.10 alkylamine, nitro, C.sub.1 -C.sub.4 lower ester, C.sub.1 -C.sub.4 lower alkoxy, C.sub.1 -C.sub.4 lower thioalkoxy; Z represents oxygen atom, sulfur atom, carbon atom and carbonyl group; X represents oxygen atom, sulfur atom; n represents an integer of 1-3; and (sub)cycloalk(en)yl represents ##STR2## in which R.sub.4 and R.sub.Type: GrantFiled: January 21, 1998Date of Patent: July 13, 1999Assignee: Samjin Pharmaceutical Co., LtdInventors: Eui-Hwan Cho, Sun-Gan Chung, Joong-Young Kim, Sun-Hwan Lee, Ho-Seok Kwon, Jae-Eung Lee, Jeong-Ho Joo, Byung-Chul Kim, Dong-Wook Kang
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Patent number: 5919784Abstract: A compound of general formula (I): ##STR1## where A, X, R.sub.1, Y, n and Ar are defined in the description. Medicinal products containing the same are useful as D.sub.4 receptor Ligands.Type: GrantFiled: November 7, 1997Date of Patent: July 6, 1999Assignee: Adir Et CompagnieInventors: Daniel Lesieur, Pascal Carato, Jean-Paul Bonte, Patrick Depreux, Daniel-Henri Caignard, Mark Millan, Adrian Newman-Tancredi, Pierre Renard, Marie-Claire Rettori
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Patent number: 5919956Abstract: A process for the manufacture of an optionally protected 4,8,8-trimethyl-1-oxaspiro?2.5!oct-4-en-6-ol (I) starting from protected 4-hydroxy-2,6,6-trimethyl-2-cyclohexen-1-one (II) comprises reacting the protected compound (II) with dihalomethyllithium and, if desired, cleaving off the protecting group from the thus-obtained protected 4,8,8-trimethyl-1-oxaspiro?2.5!oct-4-en-6-ol. The dihalomethyllithium can be produced in situ by reacting a dihalomethane with a lower alkyllithium in the presence of the compound of formula II. Preferably, protected (S)-4-hydroxy-2,6,6-trimethyl-2-cyclohexen-1-one is converted into protected (3S,6S)-4,8,8-trimethyl-1-oxaspiro?2.5!oct-4-en-6-ol in this manner. Both the starting material (II) and the end product (I) of the process in accordance with the invention are known, valuable intermediates for the manufacture of carotenoids.Type: GrantFiled: September 29, 1997Date of Patent: July 6, 1999Assignee: Roche Vitamins Inc.Inventors: Hans Hilpert, Erich Widmer
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Patent number: 5919774Abstract: A class of novel pyrroles is disclosed together with the use of such compounds for inhibiting sPLA.sub.2 mediated release of fatty acids for treatment of conditions such as septic shock.Type: GrantFiled: December 5, 1997Date of Patent: July 6, 1999Assignee: Eli Lilly and CompanyInventors: Nicholas J. Bach, Robert D. Dillard, Susan E. Draheim
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Patent number: 5912362Abstract: High-purity isochroman compounds can be obtained in high yields according to a simple and economical process for preparing isochroman compounds, comprising the step of adding an aquesous solution of formaldehyde having a concentration of 40 to 70 wt. % to a complex of an arylalkanol represented by the following general formula (II) with a Friedel-Crafts catalyst to cyclize the arylalkanol: ##STR1## wherein R.sub.1 and R.sub.2 each stands for a hydrogen atom, a lower alkyl group or a lower alkoxyl group, or alternatively R.sub.1 and R.sub.2 are respectively bonded to adjacent carbon atoms with mutual bonding of R.sub.1 and R.sub.2 together with the carbon atoms respectively bonded to R.sub.1 and R.sub.2 to form a benzene ring, a naphthalene ring, or a C.sub.5 or C.sub.6 cycloalkane or cycloalkene which may have 1 to 6 lower alkyl groups; and R.sub.3 stands for a hydrogen atom or a lower alkyl group.Type: GrantFiled: November 10, 1997Date of Patent: June 15, 1999Assignee: Kao CorporationInventors: Shigeyoshi Tanaka, Masayuki Oku, Junji Koshino
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Patent number: 5910591Abstract: The present invention relates to a method for preparing 4-hydroxy-1,2,2,6,6-pentamethylpiperidine comprising the following steps:(i) reacting 4-hydroxy-2,2,6,6-tetramethylpiperidine with at least one compound selected from the group consisting of formaldehyde, paraformaldehyde and trioxane, optionally in the presence of formic acid;(ii) neutralizing the reaction product of step (i) by adding a base thereto; and(iii) after the neutralization, separating the crude product from the aqueous layer and crystallizing and filtering the crude product to thereby obtain crystals of 4-hydroxy-1,2,2,6,6-pentamethylpiperidine with a water content of 3% by weight or less.Type: GrantFiled: October 17, 1997Date of Patent: June 8, 1999Assignee: Mitsui Chemicals, Inc.Inventor: Masaaki Yasuda
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Patent number: 5908934Abstract: A process for the preparation of compounds of formula I ##STR1## where R.sup.1, R.sup.2, R.sup.3, m, n and q are as defined herein; which comprises the steps of (a)reacting a compound of formula III ##STR2## with a chiral acid in an organic solvent to form a salt of a compound of formula I and (b) treating the salt of a compound of formula I with an aqueous base to obtain the compounds of formula I. Compounds of formula I are intermediates useful in the preparation of protein kinase inhibitors.Type: GrantFiled: September 12, 1997Date of Patent: June 1, 1999Assignee: Bristol-Myers Squibb CompanyInventor: Kyoung Soon Kim
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Patent number: 5907038Abstract: Compounds of the formula ##STR1## wherein R.sup.1 is phenyl or alpha- or beta-naphthyl, which groups can be substituted by hydroxy, lower-alkyl, lower-alkoxy, lower alkoxycarbonyl, phenoxy, acyloxy, hydroxyphenoxy-sulfonyl, halogen, nitro, amino, acylamino or N-lower-alkyl-acylamino;R.sup.2 is phenyl or phenyl substituted by hydroxy or acyloxy;Y is a carbon-carbon bond or is vinylene; andn is 1,2 or 3;and pharmaceutically acceptable acid addition salts thereof are protein kinase inhibitors and can be used for the treatment of disorders mediated by such enzymes, for example, inflammatory diseases.Type: GrantFiled: March 31, 1997Date of Patent: May 25, 1999Assignee: Hoffmann-La Roche Inc.Inventors: Pierre Barbier, Josef Stadlwieser, Sven Taylor
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Patent number: 5889037Type: GrantFiled: June 7, 1995Date of Patent: March 30, 1999Assignee: Orion-yhtyma OyInventors: Reijo Backstrom, Erkki Honkanen, Inge-Britt Linden, Erkki Nissinen, Aino Pippuri, Pentti Pohto, Tapio Korkolainen
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Patent number: 5880137Abstract: The present invention relates to new 2-Phenyl-1-?4-(amino-1-yl-alk-1-ynyl)-benzyl!-1H-indol-5-ol compounds which are useful as estrogenic agents, as well as pharmaceutical compositions and methods of treatment utilizing these compounds, which have the general structure below.Type: GrantFiled: April 29, 1998Date of Patent: March 9, 1999Assignee: American Home Products CorporationInventors: Chris P. Miller, Michael D. Collini, Bach D. Tran
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Patent number: 5877318Abstract: Disclosed is a hydroquinone derivative or a pharmaceutically acceptable salt thereof, the hydroquinone derivative being represented by formula (I): ##STR1## wherein R.sup.1 is a phenyl group which is unsubstituted or substituted with a substituent or substituents each independently selected from the group consisting of a halogen atom, a C1-4 alkyl group and a C1-4 alkoxy group;R.sup.2 is a hydrogen atom or a C1-4 alkyl group;each of R.sup.3 and R.sup.4 is independently a hydrogen atom or a C1-4 alkyl group;R.sup.5 is a hydrogen atom or a C1-4 alkyl group;each of R.sup.6, R.sup.7 and R.sup.8 is independently a hydrogen atom or a C1-4 alkyl group;P is a hydroxyl group;Q is a hydroxyl group, a C1-4 alkoxy group, a C1-18 acyloxy group or an oxo group;P may form together with Q an ether bond;R is a hydroxyl group, a C1-4 alkoxy group, a C1-18 acyloxy group or an oxo group, provided that when one of said Q and said R is an oxo group, the other is also an oxo group;X is a single bond, an --NR.sup.Type: GrantFiled: July 10, 1998Date of Patent: March 2, 1999Assignee: Japan Energy CorporationInventors: Yoshiaki Isobe, Yuso Goto, Masanori Tobe, Osamu Takahashi
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Patent number: 5869487Abstract: A compound which inhibits human thrombin and where has the structure ##STR1##Type: GrantFiled: October 24, 1997Date of Patent: February 9, 1999Assignee: Merck & Co., Inc.Inventors: Craig Coburn, Christine Kolatac, Diane M. Rush, Joseph P. Vacca
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Patent number: 5866587Abstract: Compound of formula (I): ##STR1## in which: m, n, which are identical or different, represent 0, 1 or 2,R.sub.1, R.sub.2, which are identical or different, represent hydrogen, optionally substituted alkyl, aryl, or form with the carbon atom carrying them carbonyl or (C.sub.3 -C.sub.7)cycloalkyl,R.sub.3 represents hydrogen, alkyl, hydroxyl or aryl,R.sub.4 represents any of the groups as defined in the description,X represents --SO.sub.2 --, --CO-- or --SO.sub.2 NH--,R.sub.5 represents optionally substituted alkyl, (C.sub.3 -C.sub.7)cycloalkyl, aryl or heterocyclic,A represents an aryl ring or a heterocycle,its isomers as well as its addition salts with a pharmaceutically acceptable acid or base and medicinal products containing the same are useful as metalloprotease inhibitors.Type: GrantFiled: April 25, 1997Date of Patent: February 2, 1999Assignee: Adir Et CompagnieInventors: Guillaume de Nanteuil, Joseph Paladino, Georges Remond, Ghanem Atassi, Alain Pierre, Gordon Tucker, Jacqueline Bonnet, Massimo Sabatini
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Patent number: 5866579Abstract: This invention is directed to novel imidazole and imidazoline derivatives which are selective agonists for cloned human .alpha..sub.2 adrenergic receptors. This invention is also related to the use of these compounds for the treatment of any disease where modulation of the .alpha..sub.2 receptors may be useful. The invention further provides for a pharmaceutical composition comprising a therapeutically effective amount of the above-defined compounds and a pharmaceutically acceptable carrier.Type: GrantFiled: April 11, 1997Date of Patent: February 2, 1999Assignee: Synaptic Pharmaceutical CorporationInventors: Wai C. Wong, Yoon T. Jeon, T. G. Murali Dhar, Charles Gluchowski
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Patent number: 5866588Abstract: This invention relates to imidazopyridine derivatives with the general formula II: ##STR1## These compounds are useful as dual histamine (H.sub.1) and platelet activating factor (PAF) receptor antagonists.Type: GrantFiled: June 20, 1997Date of Patent: February 2, 1999Assignee: British Biotech Pharmaceuticals Ltd.Inventors: Andrew Paul Ayscough, Christopher Mark Blackwell, Steven Launchbury, Mark Whittaker
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Patent number: 5859044Abstract: The present invention relates to certain compounds of the formula (I) the racemic-enantiomeric mixtures and optical isomers of said compounds, prodrugs thereof and the pharmaceutically acceptable salts, depicted below, which are .beta.-adrenergic receptor agonists and accordingly have utility as, inter alia, hypoglycemic and antiobesity agents. The invention also relates to methods of use for the compounds and to compositions containing them. The compounds of the present invention also possess utility for increasing lean meat deposition and/or improving the lean meat to fat ratio in animals, e.g., ungulate animals, companion animals, especially dogs, and poultry. The compounds of formula (I) have the following structure ##STR1## wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are as defined in the specification.Type: GrantFiled: July 14, 1997Date of Patent: January 12, 1999Assignee: Pfizer Inc.Inventors: Robert L. Dow, Kristin M. Lundy
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Patent number: 5854273Abstract: A compound of formula (I) ##STR1## in which: X and Y, which may be identical or different, represent hydrogen or halogen or alkyl, trihaloalkyl, alkoxy, hydroxyl, cyano, nitro, amino, alkylamino, or dialkylamino,Z represent a linear or branched C.sub.4 to C.sub.12 alkylene chain in which one or more --CH.sub.2 -- are optionally replaced by any one of the following atoms or groups: --NR--, --O--, --S--, --SO--, --SO.sub.2 --, or --CONH--,A forms, with two adjacent carbon atoms of the phenyl ring, a phenyl, naphthyl or tetrahydronaphthyl ring or a heterocycle, ##STR2## represents any one of the groups as defined in the description, its optical isomers and its addition salts with a pharmaceutically-acceptable acid or base, and medicinal products containing the same which are useful as anticancer agents.Type: GrantFiled: July 23, 1997Date of Patent: December 29, 1998Assignee: ADIR et CompagnieInventors: Gilbert Lavielle, Patrick Hautefaye, Ghanem Atassi, Alain Pierre, Laurence Kraus-Berthier, Stephane Leonce
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Patent number: 5847124Abstract: Crystallized anhydrous zilpaterol hydrochloride having less than 5% of the crystals with a size of less than 15 microns and at least 95% of the crystals having a size of less than 250 microns and a process for its preparation and novel intermediates.Type: GrantFiled: December 11, 1997Date of Patent: December 8, 1998Assignee: Roussel UclafInventors: Yves Chevremont, Jean-Yves Godard
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Patent number: 5843965Abstract: The instant invention provides novel benzo?b!thiophene compounds, intermediates, compositions, pharmaceutical formulations, and methods of use for the inhibition of bone loss or bone resorption and for treatment of cardiovascular-related pathological conditions.Type: GrantFiled: August 27, 1997Date of Patent: December 1, 1998Assignee: Eli Lilly and CompanyInventor: Alan David Palkowitz