NOVEL PROCESSES FOR THE PREPARATION OF PHENYLCYCLOPROPYLAMINE DERIVATIVES AND USE THEREOF FOR PREPARING TICAGRELOR
申请人:Khile Anil Shahaji
公开号:US20130165696A1
公开(公告)日:2013-06-27
Provided herein are novel processes for the preparation of phenylcyclopropylamine derivatives, which are useful intermediates in the preparation of triazolo[4,5-d]pyrimidine compounds. Provided particularly herein are novel, commercially viable and industrially advantageous processes for the preparation of a substantially pure ticagrelor intermediate, trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine. Provided further herein are novel acid addition salts of trans-(1R,2S)-2-(3,4-difluorophenyl)-cyclopropylamine, and process for their preparation. The intermediate and its acid addition salts are useful for preparing ticagrelor, or a pharmaceutically acceptable salt thereof, in high yield and purity.
本文提供了一种制备苯基环丙胺衍生物的新型工艺,这些衍生物在三唑并[4,5-d]嘧啶化合物的制备中是有用的中间体。特别提供了一种新颖、商业可行且在工业上具有优势的工艺,用于制备一种基本纯的替卡格雷中间体,即trans-(1R,2S)-2-(3,4-二氟苯基)-环丙胺。此外,本文还提供了trans-(1R,2S)-2-(3,4-二氟苯基)-环丙胺的新型酸加盐,以及其制备工艺。该中间体及其酸加盐对于高产率和纯度制备替卡格雷或其药用可接受盐是有用的。