Disclosed herein are novel intermediates for producing [R-(E)]-l-[[[I-[3-[2-(7-chloro-2-quinolinyl)ethenyl]phenyl]-3-[2-(l-hydroxy-l-methylethyl) phenyl] propyl]thio] methyl]eyelopropaneacetic acid, monosodium salt (montelukast sodium). Further the invention provides processes for preparing said intermediates. ...

The present invention provides an improved one-pot process for the . preparation of 5-amino-2-hydroxybenzoic acid where) 2-halo-5-nitrobenzoic acid is reacted in the presence of a base, further metal catalyst was added to the reaction to 5-amino-2-hydroxybenzoic acid of formula I was isolated from said reaction mass...

The present invention relates to an novel process for the purification of 1-(2,3-Epoxy propoxylcarbazole of formula (I), which is a key intermediate of nonselective β-adrenergic blocking agent Carvedilol. Dated this seventh (7) day of March 2008 for Inogent Laboratories Private Limited Head Process R&D & Cus...

This invention provides an improved process for producing (5-methyl-2-oxo- 1,3-dioxolen-4-yl)methyl-4-( 1 -hydroxy-1 -methylethyl)-2-propyl-1 -[4-[2- (tetrazol-5-yl)phenyl]phenyl]methylimidaozle-5-carboxylate (Olmesartan medoxomil).

This invention broadly relates to a method for synthesizing ll-(4-[2-(2-hydroxyethoxy)ethyl]-piperazinyl)-dibenzo[b,f)[l,4]thiazepine hemifumarate salt (Quetiapine hemifumarate) and the intermediate 1 l-pipera2inyldiben2o[b,fl[l,4]thiazepine dihydrochloride using phosphorous oxychloride in presence of non-aromatic s...

The present invention relates to an improved process for the of substituted 2-(2- Preparation pyrdylmethyl,-sulfinyl-IH-benzimidazoles or its derivatives, which are useful for a medicament such as an inhibitor of gastric acid or an anti-ulcer agent or an intermediate to produce medicaments in secretion and high puri...

Disclosed herein is the process for producing the 6-(2,3-dichlorophenyl)-l,2,4-triazine-3,5-diamine comprising a process for preparing a compound 6-(2,3-dichlorophenyI)-l,2,4-triazine-3,5-diamine by stirring a suspension of 2(2,3-dichlorophenyl)-2-(aminoguanidine) acetonitrile in neutral, basic and acidic conditions...

Abstract This invention is used to synthesize the Rabeprazole. base from Raheprazole sulphide with high yield.

NOVEL INTERMEDIATES FOR PRODUCING [R-(E)J-]-[[[!-[3-[2-(7-CHLORO-QUINOLINYL)ETHENYLjPHEN YL]-3-[2-( I-H YDROXY-METHYLETHYL) PHENYL]PR0PYL1THI0] METHYL] CYCLOPROPANEACETIC ACID, MONOSODIUM SALT AND PROCESS THEREOF Abstract of the Invention Disclosed herein are novel intermediates for producing [R-(E)]-l-[[[l-[3-[2-...

This invention provides a new process for producing (5-methyl-2-oxo-l,:!-dioxolen-4-yl)methyI-4-( 1 -hydroxy-1 -methylethyl)-2-propyl-1 -[4-[2-(tetrazol-5 -yl)phenyl]phenyl]methylimidaozle-5-carboxylate (Olmesartan medoxomil) from alkaline salts of trityl Olmesartan more preferably Calcium salts of trityl Olmesartan...

The present invention relates to an improved and economical method for producing the compound of formula (I), more particularly 3,5-diamino-6-(2,3-dichlorophenyl)-1,2,4-triazine (Lamotrigine) which is suitable for treating disorders of the central nervous system, in particular epilepsy, and since 1990 has been used ...

This invention provides a process for preparing pure telmisartan by condensing 2-n-propyl-4-methyl-6-(1"-methylbenzimidazol-2"-yl) benzimidazole (I) with a compound of formula (II) to obtain the compound 2-cyano-4"-[2"-n-propyl-4"-methyl-6"-( 1 ""-methylbenzimidazol-2""-yl)benzimidazol-1 "-ylmethyl] biphenyl (III), ...

The present invention relates to an improved process for the preparation of 3-f5-(4-fluorophenyl)-5-oxopentanoyl]-4(S)-phenyl-l,3-oxazolidin-2-one of Formula (I).

Disclosed herein is an industrial scale process for producing the 6-(2,3-dichlorophenyl)- l,2,4-triazine-3,5-diamine comprising stirring a suspension of 2(2,3-dichlorophenyl)-2- (aminoguanidine) acetonitrile in Cp C4 alkanol under reflux till equilibrium is attained followed by treatment with activated charcoal to o...

Abstract Process for the preparation of desired cis isomer of compound of formula (II) i.e cis-1-(1 S-benzodioxol tetrahydro-l H-pyrido[3,4-bJindole-3-carboxylic acid methyl ester, where reacting D-tryptophan methyl ester hydrochloride compound of formula (III) with piperonal in the presence of solvent mixtures tol...