(4R,6R,7S)-4,7-di(tert-butyldimethylsilyloxy)-2-[(E)-2-cyclopropylvinyl]-4,5,6,7-tetrahydrobenzo[b]thiophene-4,6-carbolactone 在
四丁基氟化铵 作用下,
以
四氢呋喃 为溶剂,
以92%的产率得到(4R,6R,7S)-2-[(E)-2-cyclopropyl]vinyl-4,7-dihydroxy-4,5,6,7-tetrahydrobenzo[b]thiophen-4,6-carbolactone