申请人:Kitagawa Yutaka
公开号:US20130060036A1
公开(公告)日:2013-03-07
Provided is a production method for a cis-QMF, which has a low environmental burden and is industrially advantageous. Specifically provided is a production method for a cis-type 2-alkylspiro(1,3-oxathiolane-5,3′)quinuclidine hydrochloride, including: reacting a cis-trans isomer mixture of 2-alkylspiro(1,3-oxathiolane-5,3′)quinuclidine with p-nitrobenzoic acid; resolving the resultant product to produce a cis-type 2-alkylspiro(1,3-oxathiolane-5,3′)quinuclidine p-nitrobenzoate; and converting the p-nitrobenzoate into a hydrochloride.
提供了一种生产cis-QMF的方法,该方法具有低环境负担且在工业上具有优势。具体提供了一种用于生产顺式2-烷基螺(1,3-噁硫杂环戊烷-5,3′)喹啉盐酸盐的方法,包括:将2-烷基螺(1,3-噁硫杂环戊烷-5,3′)喹啉的顺反异构体混合物与对硝基苯甲酸反应;将所得产物分离以产生顺式2-烷基螺(1,3-噁硫杂环戊烷-5,3′)喹啉对硝基苯甲酸酯;并将对硝基苯甲酸酯转化为盐酸盐。