[EN] PREPARATION OF N-PROTECTED-3-PYRROLIDINE-LACTAM SUBSTITUTED PHOSPHONIUM SALTS<br/>[FR] PREPARATION DE SELS DE PHOSPHONIUM SUBSTITUES PAR 3-PYRROLIDINE-LACTAME N-PROTEGE
申请人:BASILEA PHARMACEUTICA AG
公开号:WO2002014332A1
公开(公告)日:2002-02-21
New process for the preparation of bipyrrolidinyl compounds of formula I wherein * signifies an asymmetric centre with an (R) or (S) configuration and X represents chlorine, bromine or iodine. The compounds of formula I are important building blocks for the production of useful products in the chemical and in the pharmaceutical industry. In particular they are useful for the production of antibacterial substances for example like vinylpyrrolidinone-cephalosporin derivatives.
Preparation of n-protected-3-pyrrolidine-lactam substituted phosphonium salts
申请人:——
公开号:US20030195364A1
公开(公告)日:2003-10-16
New process for the preparation of bipyrrolidinyl compounds of formula I wherein * signifies an asymmetric centre with an (R) or (S) configuration and X represents chlorine, bromine or iodine. The compounds of formula I are important building blocks for the production of useful products in the chemical and in the pharmaceutical industry. In particular they are useful for the production of antibacterial substances for example like vinylpyrrolidinone-cephalosporin derivatives.
1
The compound (R)-(1′-benzyl-3-bromo-[1,3′]bipyrrolidinyl-2-one) which is an intermediate for antibacterial vinylpyrrolidinone-cephalosporin derivatives.
Preparation of N-protected-3-pyrrolidine-lactam substituted phosphonium salts
申请人:Rogers-Evans Mark
公开号:US20080009637A1
公开(公告)日:2008-01-10
New process for the preparation of bipyrrolidinyl compounds of formula I wherein * signifies an asymmetric centre with an (R) or (S) configuration and X represents chlorine, bromine or iodine. The compounds of formula I are important building blocks for the production of useful products in the chemical and in the pharmaceutical industry. In particular they are useful for the production of antibacterial substances for example like vinylpyrrolidinone-cephalosporin derivatives.