[EN] PROCESS FOR THE PREPARATION OF CHIRAL HYDRAZIDES<br/>[FR] PROCÉDÉ DE PRÉPARATION D'HYDRAZIDES CHIRAUX
申请人:SANDOZ AG
公开号:WO2011144655A1
公开(公告)日:2011-11-24
The present invention relates to a process for the preparation of a chiral compound according to formula (V) wherein R1 is preferably an alkyl residue preferably having from 1 to 6 carbon atoms, in particular to a process for the preparation of a chiral compound the crystalline chiral compounds as such, and their use for the preparation of an antifungal agent, in particular posaconazole.
The present invention relates to a process for the preparation of a chiral compound according to formula (V) wherein R
1
is preferably an alkyl residue preferably having from 1 to 6 carbon atoms, in particular to a process for the preparation of a chiral compound the crystalline chiral compounds as such, and their use for the preparation of an antifungal agent, in particular posaconazole.
The present invention relates to a process for the preparation of a compound of formula (V), in particular posaconazole, wherein said process comprises the steps of (1) providing a mixture comprising a compound of formula (IV), a protic solvent system, and a suitable base; and (2) heating the mixture of (1) to obtain a mixture comprising the compound of formula (V).