1-烯丙基哌嗪 、
6-(7-chloro-[1,8]naphthyridin-2-yl)-5-phenoxycarbonyloxy-2,3,5,6-tetrahydro-[1,4]oxathiino[2,3-c]pyrrol-7-one 、
异丙醚 在
异丙醚 作用下,
以
乙腈 为溶剂,
反应 29.0h,
以5-(4-allylpiperazine-1-yl)carbonyloxy-6-(7-chloro-1,8-naphthyridin-2-yl)-7-oxo-2,3,6,7-tetrahydro-5H-1,4-oxathiino[2,3-c]pyrrole (3.1 g.), melting at 254° C., is obtained的产率得到4-allyl-piperazine-1-carboxylic acid 6-(7-chloro-[1,8]naphthyridin-2-yl)-7-oxo-2,3,6,7-tetrahydro-5
H-[1,4]oxathiino[2,3-
c]pyrrol-5-yl ester