摘要
目的:改进左乙拉西坦的合成方法。方法以(S)-2-氨基-丁酰胺盐酸盐为起始原料,经过酰化、环合制备左乙拉西坦。结果与结论:反应条件温和、时间短,易于控制,新合成方法可使总收率稳定在53%以上,高于文献报道的方法,降低了成本,更适合工业化的要求。
Objective To improve synthesis method of Levetiracetam.Methods To (S) -2 - amino - butanamide hydrochloride as starting materials, acylation, cyclization levetiracetam.Results and conclusion Mild reaction conditions, time is short, easy to control, the new synthesis method enables stable overall yield of 53% or more,higher than reported in the literature method,more suitable for industrial requirements.
出处
《中国化工贸易》
2013年第8期382-382,共1页
CHINA CHEMICAL TRADE
关键词
左乙拉西坦
合成
工艺改进
Levetiracetam synthesic process improvement