PROCESS FOR MANUFACTURE OF TELMISARTAN PATENT US2013137878 (A1)30 MAY 2013

New Drug Approvals

A process for preparing telmisartan by reacting 2-n-propyl-4-methyl-6-(1′-methylbenzimidazol-2′-yl)benzimidazole with a compound of formula (IV) wherein Z is a leaving group, to obtain the compound 2-cyano-4′-[2”-n-propyl-4”-methyl-6”-(1”’-methylbenzimidazol-2”’-yl)benzimidazol-1”-ylmethyl]biphenyl, and subsequently hydrolyzing the nitrile function to obtain the acid function.

http://worldwide.espacenet.com/publicationDetails/biblio?CC=US&NR=2013137878A1&KC=A1&FT=D&DB=EPODOC&locale=en_EP&date=20130530&rss=true

US2013137878  (A1)  –  PROCESS FOR MANUFACTURE OF TELMISARTAN

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