Abstract: The present invention relates to a process for the efficient preparation of highly optical pure chiral carvedilol. According to the present invention, a chiral oxazolidin-2-one or oxazolidin-2-thione having formula 2, produced from the reaction of N-protected 2-(2-methoxyphenoxy)ethylamine with a chiral glycidol derivative is used as a key intermediate for the preparation of the chiral carvedilol. Specifically, the process for the preparation of the chiral carvedilol comprises a) reacting a compound of formula 2 with a halogenation agent, a sulfonation agent or a mitsunobu reagent to activate a hydroxyl group of the compound of formula 2, followed by nucleophilic substitution reaction with 9H-4-hydroxy carbazole to produce a compound of formula 7, and b) subjecting the obtained compound of formula 7 to a deprotection reaction in a presence of an inorganic base to produce the targeted chiral carvedilol. The process of the present invention can be accomplished in a mild condition.
Abstract: In illustrative embodiments, there is provided an amorphous form of L-arginine salt of perindopril which may be particularly suitable for pharmaceutical applications, and processes for preparing said form.
Type:
Grant
Filed:
September 3, 2009
Date of Patent:
January 24, 2012
Assignee:
Apotex Pharmachem Inc.
Inventors:
Gamini Weeratunga, Carlos B. Zetina-Rocha
Abstract: The invention relates to a method for producing onium salts with tetrafluoroborate anion by reacting an onium halide with an oxonium tetrafluoroborate, sulfonium tetrafluoroborate, or triphenylcarbonium tetrafluoroborate.
Type:
Grant
Filed:
November 18, 2005
Date of Patent:
January 24, 2012
Assignee:
Merck Patent Gesellschaft mit beschrankter Haftung
Inventors:
Nikolai (Mykola) Ignatyev, Urs Welz-Biermann, Andriy Kucheryna, Helge Willner
Abstract: The present invention provides a radiolabeled ligand which is highly selective and potent for glutamate transporters and is usable in specifically detecting the glutamate transporter. Specifically, the present invention provides a 3-[3-(benzoylamido)benzyloxy]aspartic acid having a radioactive substituent on the benzoyl group which is represented by the following formula (1), or an ester or salt thereof: wherein X represents a substituent containing a radioactive atom(s) which is selected from a straight or branched lower aliphatic alkyl group, a hydroxyl group, a straight or branched lower aliphatic alkoxy group, an amino group, a straight or branched lower aliphatic acylamido group, a halogen atom and a straight or branched lower aliphatic haloalkyl group; and R1 and R2 each represents a hydrogen atom, a straight or branched lower aliphatic alkyl group or an acetoxymethyl group.
Abstract: Chemically reactive carbocyanine dyes that are intramolecularly crosslinked between the 1-position and 3?-position, their bioconjugates and their uses are described. 1,3?-crosslinked carbocyanines are superior to those of conjugates of spectrally similar 1,1?-crosslinked or non-crosslinked dyes. The invention includes derivative compounds having one or more benzo nitrogens.
Type:
Grant
Filed:
August 20, 2009
Date of Patent:
January 10, 2012
Assignee:
AnaSpec Incorporated
Inventors:
Zhenjun Diwu, Jianheng Zhang, Yi Tang, Xiang Guobing
Abstract: Sulfonylethyl and thioethyl phosphorodiamidates, their preparation and intermediates in their preparation, formulations containing them, and their pharmaceutical use. The compounds are useful for treating cancer, alone and in combination with other anticancer therapies.
Type:
Grant
Filed:
July 17, 2007
Date of Patent:
January 10, 2012
Assignee:
Telik, Inc.
Inventors:
David R. Allen, Wenli Ma, Brian T. Peterson, Louise Robinson, Steven R. Schow, Songyuan Shi, Reyna J. Simon, Kevin T. Weber, Michael M. Wick
Abstract: This application discloses aminopiperidinyl compounds of generic Formulae I-II: or pharmaceutically acceptable salts thereof, wherein m, r, Q1, Q2, Q3, R, Ra, R1, R2a, R2b, and R3 are defined as described herein, useful for treatment of diseases associated with monoamine reuptake inhibitors. Also provided are pharmaceutical compositions, methods of using, and methods of preparing the compounds.
Type:
Grant
Filed:
March 25, 2009
Date of Patent:
January 10, 2012
Assignee:
Roche Palo Alto LLC
Inventors:
Pravin Iyer, Matthew C. Lucas, Ryan Craig Schoenfeld, Robert James Weikert
Abstract: The present invention is directed to novel compounds. These compounds can be useful in inhibiting the activity of GGTase I. The compounds can also be used as anti-cancer therapeutics including as part of methods for treating cancer, in assays, and in kits.
Type:
Grant
Filed:
March 22, 2007
Date of Patent:
January 10, 2012
Assignee:
The Regents of the University of California
Abstract: The invention relates to the inhibition of VEGF receptor signaling and HGF receptor signaling. The invention provides compounds of general formula (A) wherein A1 is sulfur, A3 is CH, A2 is CH, D is heterocycle, Z is oxygen, SO0-2 or NR, Ar is phenyl and G is not a ring, and methods for inhibiting VEGF receptor signaling and HGF receptor signaling. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.
Type:
Grant
Filed:
May 19, 2006
Date of Patent:
January 10, 2012
Assignee:
Methylgene Inc.
Inventors:
Oscar Mario Saavedra, Stephen William Claridge, Lijie Zhan, Franck Raeppel, Arkadii Vaisburg, Stephane Raeppel, Michael Mannion, Frederic Gaudette, Ljubomir Isakovic, Marie-Claude Granger, Naomy Bernstein
Abstract: The invention relates to the inhibition of histone deacetylase. The invention provides compounds and methods for inhibiting histone deacetylase enzymatic activity. The invention also provides compositions and methods for treating cell proliferative diseases and conditions.
Type:
Grant
Filed:
March 16, 2007
Date of Patent:
January 3, 2012
Assignee:
MethylGene Inc.
Inventors:
Daniel Delorme, Silvana Marcela Leit de Moradei, Sylvie Frechette
Abstract: A compound represented by the following formula (1) or a salt thereof: The compound has an inhibitory activity on the production of interleukin-6, and is therefore useful as a therapeutic agent for a disease associated with interleukin-6, ocular inflammatory diseases and the like. In the formula, R1 represents a halogen atom, a hydrogen atom, a lower alkyl group which may have a substituent, a formyl group, or a lower alkylcarbonyl group which may have a substituent, R2 represents a bicyclic hydrocarbon group which may have a substituent or a bicyclic heterocyclic group which may have a substituent, R3 represents a hydrogen atom, a lower alkyl group which may have a substituent, an aryl group which may have a substituent, or an acyl group.
Abstract: The present invention describes a method for the synthesis of enantiomerically pure 3-amidinophenylalanine derivatives, which are used as pharmaceutically effective urokinase inhibitors, by starting from 3-cyanophenylalanine derivatives. The methods of manufacture comprising only one synthesis step lead to new intermediates, namely 3-hydroxyamidino- and 3-amidrazonophenylalanine derivatives. These intermediates or their acetyl derivatives can be reduced into the desired 3-amidino-phenylalanine derivatives under gentle conditions (H2 or ammonium formiate, Pd/C (approx. 10%), ethanol/water, room temperature, normal pressure or also H2, Pd/C, AcOH or HCl/ethanol, 1-3 bar) in excellent yields and in an enantiomeric excess of up to 99.9%.
Abstract: The present invention relates to a process for the production of carbamic acid (2-chloroethyl)(3-oxocyclohexyl)-alkyl ester enantiomers and of 1-carbalkoxy-4-ketoperhydroindole enantiomers.
Type:
Grant
Filed:
August 10, 2009
Date of Patent:
December 27, 2011
Assignee:
Novartis AG
Inventors:
Ernst Kuesters, Murat Acemoglu, Philipp Lustenberger, Gottfried Sedelmeier, Beat Schmitz, Gerhard Penn
Abstract: The present embodiments are related to the compound of Formula 1 or Formula 2 below and pharmaceutical formulations thereof as well as treatments for a wide variety of Central Nervous System disorders with the pharmaceutical formulations. Some embodiments include the use of a variety of the instant compounds which surprisingly and advantageously exhibit improved pharmacokinetic and therapeutic profiles in comparison to pivagabine.
Abstract: A pyridone derivative represented by Formula [1] or an agriculturally acceptable salt thereof: wherein R1 is a C1-6 alkyl group, a C2-6 alkenyl group, a C2-6 alkynyl group, or the like; R2 and R3 are each independently a hydrogen atom, a nitro group, a cyano group, or the like; and A is a group represented by Formula A-1, Formula A-2, Formula A-3, Formula A-4, or Formula A-5: The compounds represented by general formula [1] control various weeds growing in upland fields, orchards, paddy fields, and non-crop lands while showing high safety to useful plants and crops.
Type:
Grant
Filed:
January 31, 2007
Date of Patent:
December 13, 2011
Assignees:
Kumiai Chemical Industry Co., Ltd., Ihara Chemical Industry Co., Ltd.
Abstract: Disclosed is a process for the manufacture of a compound of formula (I) wherein Hal represents fluoro or chloro, and R1 and R2 represent, independently from one another, hydrogen or Hal; in which process a compound of formula (II) is converted to a corresponding alkyl, fluoroalkyl or aryl sulfonic acid ester, which is then reacted with an alkali metal nitrite in the presence of a suitable crown ether in a polar non-nucleophilic solvent at a temperature of ?10 to 50° C. to give the compound of formula (I).
Abstract: The current invention describes novel chiral synthetic routes and intermediates for the manufacture of chiral anti-inflammatory agents of general formula VIII in which at least one of the groups X1, X2, X3 is selected from fluoro, chloro, bromo, hydroxy, methoxy, ethoxy, trifluoromethyl, amino whereas the other groups X1, X2, X3 have the meaning of a hydrogen atom, in which at least one of the groups Z1, Z2, Z3 is selected from —O—, —S—, —NH—, —N(—CH3)—, whereas the other groups Z1, Z2, Z3 have the meaning of a —CH2— group, and in which Ar is an aromatic group.
Abstract: The invention provides compositions and methods for the detection of biological targets, (e.g. nucleic acids and proteins) by nucleic acid-templated chemistry, for example, by generating fluorescent polymethine dyes.
Abstract: The present invention relates to novel aniline derivatives and their use in therapy, in particular their use in the treatment of fungal infections.
Type:
Grant
Filed:
January 13, 2010
Date of Patent:
December 6, 2011
Assignee:
UCB Pharma S.A.
Inventors:
Andrew David Carr, Judi Charlotte Neuss, Michael Glen Orchard, David William Porter
Abstract: The present invention provides dithiolopyrrolone compounds of the general formula I, and their salts, wherein A is sulfur or carbon, and R1, R2, and R3 are selected from groups defined herein, and wherein when A is sulfur, then B is oxygen, and n=1 or 2, and when A is carbon, then B is oxygen or sulfur, and n=1. The compounds are useful for the prevention and treatment of microbial infections such as HIV infection, and for the treatment of blood disorders, such as neutropenia. In particular, the compounds are useful for the manufacture of medicaments for increasing white blood cells.