(3s,5Rs)-1-(4-chloro-quinolin-7-ylmethyl)-3,5-dimethyl-piperazin-2-one 、
potassium carbonate 、 3-(5-Chlorothiophen-2-yl)allyl bromide 在
potassium carbonate 、 crude material 、
ethyl acetate n-hexane 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 16.0h,
以to give a major epimer (3S, 5R)-1-(4-chloro-quinolin-7-ylmethyl)-4-[3-(5-chloro-thiophen-2-yl)-allyl]-3,5-dimethyl-piperazine-2-one (25 mg, 26% yield)的产率得到(3s, 5r)-1-(4-Chloro-quinolin-7-ylmethyl)-4-[3-(5-chloro-thiophen-2-yl)-allyl]-3,5-dimethyl-piperazine-2-one