Abstract: Processes for preparing (((3aR,6aS)-5-(4,6-dimethylpyrimidin-2-yl)hexahydropyrrolo[3,4-c]pyrrol-2(1H)-yl)(2-fluoro-6-(2H-1,2,3-triazol-2-yl)phenyl) methanone are described, which are useful for commercial manufacturing. Said compound is an orexin receptor modulator and may be useful in pharmaceutical compositions and methods for the treatment of diseased states, disorders, and conditions mediated by orexin activity, such as insomnia and depression.

Abstract: Disclosed is a process for the preparation of certain intermediates, e.g. those in the scheme below: which intermediates and processes are useful in the preparation of the macrocyclic HVC inhibitor Simeprevir.

Abstract: A process for preparing [(1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, by the resolution of racemic 4-oxo-1,2-cyclopentanedicarboxylic acid (V), said process comprising: (a) reacting 4-oxo-1,2-cyclopentanedicarboxylic acid (V) with brucine or (1R,2S)-(?)-ephedrine, thus preparing the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of (V), and (b) precipitating selectively the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of (1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, while the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of [(1S,2S)-4-oxo-1,2-cyclopentanedicarboxylic acid stays in solution; (c) liberating the acid II by removal of brucine or (1R,2S)-(?)-ephedrine from the precipitated salt obtained in step (b).

Abstract: A process for preparing [(1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, by the resolution of racemic 4-oxo-1,2-cyclopentanedicarboxylic acid (V), said process comprising: (a) reacting 4-oxo-1,2-cyclopentanedicarboxylic acid (V) with brucine or (1R,2S)-(?)-ephedrine, thus preparing the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of (V), and (b) precipitating selectively the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of (1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, while the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of [(1S,2S)-4-oxo-1,2-cyclopentanedicarboxylic acid stays in solution; (c) liberating the acid II by removal of brucine or (1R,2S)-(?)-ephedrine from the precipitated salt obtained in step (b).

Abstract: The present invention relates to an improved process for preparing (2R,3aR,10Z,11aS,12aR,14aR)-cyclopenta[c]cyclopropa[g][1,6]diazacyclotetradecine-12a(1H)-carboxylic acid, 2,3,3a,4,5,6,7,8,9,11a,12,13,14,14a-tetradecahydro-2-[[7-methoxy-8-methyl-2-[4-(1-methylethyl)-2-thiazolyl]-4-quinolinyl]oxy]-5-methyl-4,14-dioxo-, ethyl ester. This compound is an intermediate in the overall synthesis route of the macrocyclic compound TMC 435. TMC 435 is an inhibitor of NS3/4A protease which plays an important role in the replication of the hepatitis C virus.

Abstract: Disclosed is a process for the preparation of a cinchonidine salt of formula (IV) via an aqueous solution of a racemic 4-hydroxy-1,2-cyclopentanedicarboxylic acid, which is subjected to cyclization without removing water, by the addition of a water-miscible organic solvent to the aqueous solution and, again without removing water, adding cinchonidine to the aqueous-organic solvent solution so as to obtain the cinchonidine salt of the lactone acid. The cinchonidine salt is allowd to crystallize so as to obtain the enantiomerically purified crystalline lactone acid cinchonidine salt (IV). The enantiomerically pure salt is an intermediate in the synthesis of HCV inhibitor compound of formula (I).

Abstract: The present invention relates to the cinchonidine salt useful in the preparation of intermediates for preparing a macrocyclic HCV inhibitor, as well as processes involving this salt.

Abstract: The present invention relates to an improved process for preparing (2R,3aR,10Z,11aS,12aR,14aR)-cyclopenta[c]cyclopropa[g][1,6]diazacyclotetradecine-12a(1H)-carboxylic acid, 2,3,3a,4,5,6,7,8,9,11a,12,13,14,14a-tetradecahydro-2-[[7-methoxy-8-methyl-2-[4-(1-methylethyl)-2-thiazolyl]-4-quinolinyl]oxy]-5-methyl-4,14-dioxo-, ethyl ester. This compound is an intermediate in the overall synthesis route of the macrocyclic compound TMC 435. TMC 435 is an inhibitor of NS3/4A protease which plays an important role in the replication of the hepatitis C virus.

Abstract: The present invention relates to an improved process for preparing 2-[(2E)-2-fluoro-2-(3-piperidinylidene)ethyl]-1H-isoindole-1,3(2H)-dione, or a salt thereof, which is an intermediate in the synthesis route of the antibacterial compound 7-[(3E)-3-(2-amino-1-fluoroethylidene)-1-piperidinyl]-1-cyclopropyl-6-fluoro-1,4-dihydro-8-methoxy-4-oxo 3-quinolinecarboxylic acid.

Abstract: The present invention relates to the cinchonidine salt useful in the preparation of intermediates for preparing a macrocyclic HCV inhibitor, as well as processes involving this salt.

Abstract: The present invention relates to an improved process for preparing (2R,3aR,10Z,11aS,2aR,14aR)-cyclopenta[c]cyclopropa[g][1,6]diazacyclotetradecine-12a(1H)-carboxylic acid, 2,3,3a,4,5,6,7,8,9,11a,12,13,14,14a-tetradecahydro-2-[[7-methoxy-8-methyl-2-[4-10(1-methylethyl)-2-thiazolyl]-4-quinolinyl]oxy]-5-methyl-4,14-dioxo-, ethyl ester. This compound is an intermediate in the overall synthesis route of the macrocyclic compound TMC 435. TMC 435 is an inhibitor of NS3/4A protease which plays an important role in the replication of the hepatitis C virus.

Abstract: The present invention relates to the cinchonidine salt useful in the preparation of intermediates for preparing a macrocyclic HCV inhibitor, as well as processes involving this salt.

Abstract: The present invention relates to an improved process for preparing (2R,3aR,10Z,11aS,2aR,14aR)-cyclopenta[c]cyc-lopropa[g][1,6]diazacyclotetradecine-12a(1H)-carboxylic acid, 2,3,3a,4,5,6,7,8,9,11a,12,13,14,14a-tetradecahydro-2[[7-methoxy-8-methyl-2-[4-10 (1-methylethyl)-2-thiazolyl]-4-quinolinyl]oxy]-5-methyl-4,14-dioxo-, ethyl ester. This compound is an intermediate in the overall synthesis route of the macrocyclic compound TMC 435. TMC 435 is an inhibitor of NS3/4A protease which plays an important role in the replication of the hepatitis C virus.

Abstract: Disclosed is a process for the preparation of a cinchonidine salt of formula (IV) via an aqueous solution of a racemic 4-hydroxy-1,2-cyclopentanedicarboxylic acid, which is subjected to cyclization without removing water, by the addition of a water-miscible organic solvent to the aqueous solution and, again without removing water, adding cinchonidine to the aqueous-organic solvent solution so as to obtain the cinchonidine salt of the lactone acid. The cinchonidine salt is allowd to crystallize so as to obtain the enantiomerically purified crystalline lactone acid cinchonidine salt (IV). The enantiomerically pure salt is an intermediate in the synthesis of HCV inhibitor compound of formula (I).

Abstract: The present invention relates to synthesis procedures and intermediates of a compound of formula: and the salts thereof.

Abstract: A process for preparing [(1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, by the resolution of racemic 4-oxo-1,2-cyclopentanedicarboxylic acid (V), said process comprising: (a) reacting 4-oxo-1,2-cyclopentanedicarboxylic acid (V) with brucine or (1R,2S)-(?)-ephedrine, thus preparing the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of (V), and (b) precipitating selectively the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of (1R,2R)-4-oxo-1,2-cyclopentanedicarboxylic acid II, while the bis-brucine or bis-(1R,2S)-(?)-ephedrine salt of [(1S,2S)-4-oxo-1,2-cyclopentanedicarboxylic acid stays in solution; (c) liberating the acid II by removal of brucine or (1R,2S)-(?)-ephedrine from the precipitated salt obtained in step (b).

Abstract: The present invention relates to synthesis procedures and intermediates of a compound of formula: and the salts thereof.

Abstract: The present invention relates to synthesis procedures and intermediates of a compound of formula: and the salts thereof.

Abstract: The present invention relates to the cinchonidine salt useful in the preparation of intermediates for preparing a macrocyclic HCV inhibitor, as well as processes involving this salt.

Abstract: The present invention relates to synthesis procedures and intermediates of a compound of formula: and the salts thereof.