1-环戊烯-1,2-二羧酸酐 、
3-(3-isopropyl-1,2,4-oxadiazol-5-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-amine 在
2-[3-(3-isopropyl[1,2,4]oxadiazol-5-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-ylcarbamoyl]cyclopent-1-enecarboxylic acid 、
乙醚 、
水 作用下,
反应 20.0h,
以H2O (containing 0.1% formic acid) (20:80 to 98:2) to give a second batch of the title compound的产率得到2-[3-(3-isopropyl[1,2,4]oxadiazol-5-yl)-4,5,6,7-tetrahydrobenzo[b]thiophen-2-ylcarbamoyl]cyclopent-1-enecarboxylic acid