申请人:Pandey Satyendra Kumar
公开号:US09284263B1
公开(公告)日:2016-03-15
The present invention is directed towards an improved, five step method for the preparation of the anti-epileptic drug (R)-Lacosamide, as illustrated in FIG. 2. The active form of the drug is (R)-enantiomer and the present method gives high yields of (R)-enantiomer of lacosamide. The method does not involve use of any unnatural amino acids as starting material or use of protection/deprotection strategies, strong acids or hydrogenation. Instead, the method uses a cheap and easily available racemic butadiene monoepoxide as the starting material.
本发明涉及一种改进的、用于制备抗癫痫药物(R)-拉考酰胺的五步法,如图2所示。该药物的活性形式为(R)-对映体,本方法提供(R)-拉考酰胺的高产率的(R)-对映体。该方法不涉及使用任何非天然氨基酸作为起始物质,也不涉及使用保护/脱保护策略、强酸或氢化反应。相反,该方法使用一种廉价且易获得的外消旋丁二烯单环氧化物作为起始物质。