Compounds of Formula (IV), as well as pharmaceutically acceptable salts thereof, are disclosed:
The compounds are useful in the treatment of Hepatitis C infections.
本研究公开了式(IV)化合物及其药学上可接受的盐类:
这些化合物可用于治疗丙型肝炎感染。
PROCESS FOR THE PREPARATION OF N-METHYL-D-PHENYLALANYL-N- 1- 3- (AMINOIMINOMETHYL)AMINO]PROPYL]-3,3-DIFLUORO-2-OXOHEXYL]-L-PROLINAMIDE
申请人:Aventis Pharmaceuticals Inc.
公开号:EP1012165A1
公开(公告)日:2000-06-28
[EN] PROCESS FOR THE PREPARATION OF N-METHYL-D-PHENYLALANYL-N-[1-[3-[(AMINOIMINOMETHYL)AMINO]PROPYL]-3,3-DIFLUORO-2-OXOHEXYL]-L-PROLINAMIDE<br/>[FR] PROCEDE DE PREPARATION DE N-METHYL-D-PHENYLALANYL-N-[1-[3-[(AMINOIMINOMETHYL)AMINO]PROPYL]-3,3-DIFLUORO-2-OXOHEXYL]-L-PROLINAMIDE
申请人:HOECHST MARION ROUSSEL, INC.
公开号:WO1997035874A1
公开(公告)日:1997-10-02
(EN) The present invention relates to a novel process for preparing $i(N)-methyl-D-phenylalanyl-$i(N)-[1-[3-[(aminoiminomethyl)amino]propyl]-3,3-difluoro-2-oxohexyl]-L-prolinamide or a pharmaceutically acceptable salt therof and to a key intermediate by directly guanylating Dakin-West intermediates.(FR) Cette invention a trait à un nouveau procédé de préparation de $i(N)-méthyl-D-phénylalanyl-$i(N)-[1-[3-[(aminoiminométhyl)amino]propyl]-3,3-difluoro-2-oxohexyl]-L-prolinamide ou d'un sel de cette substance, acceptable du point de vue pharmaceutique. Elle concerne également un intermédiaire décisif obtenu par la guanylation directe d'intermédiaires de Dakin-West.
Catalytic hydrogenolysis of cyclopropanes: Metal insertion into a saturated carbon—carbon bond as the key step
作者:Yves Bessard、Manfred Schlosser
DOI:10.1016/s0040-4020(01)86379-1
日期:1991.1
Hydrogenolytic ring cleavage of gem-difluorocydopropanes occurs exclusively at the carbon—carbon bond opposite to the halogen-bearing center and affords mainly gem-difluoroalkanes. The intermediacy of catalyst/cyclopropane derived adducts (e.g., palladacyclobutanes or 1,3-dipal]adiopropanes) is postulated in order to rationalize the formation of monofluorinated and halogen-free by-products and, in