申请人:Urayama Shinichi
公开号:US20090036521A1
公开(公告)日:2009-02-05
An industrial process for production of high-purity optically active amine derivatives in high yield while inhibiting the formation of by-products, which comprises subjecting (E)-2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-ylidene)ethylamine to asymmetric reduction, catalytically reducing the obtained product at a reaction temperature of 40 to 100° C. and a pH of 3 to 9, subjecting the obtained (S)-2-(1,6,7,8-tetrahydro-2H-indeno[5,4-b]furan-8-yl)ethylamine to propionylation, and then crystallizing the reaction mixture.
一种工业过程,用于高产率制备高纯度光学活性胺衍生物,同时抑制副产物的形成,包括将(E)-2-(1,6,7,8-四氢-2H-茚并[5,4-b]呋喃-8-基)乙基胺进行不对称还原,催化还原所得产物在反应温度为40至100°C和pH为3至9的条件下,将所得的(S)-2-(1,6,7,8-四氢-2H-茚并[5,4-b]呋喃-8-基)乙基胺进行丙酰化,然后结晶反应混合物。