The clavulone derivatives (1-O-demethylclavulone II and 4-O-deacetylclavulone II) were synthesized from clavulone II (1) by selective enzymatic hydrolysis of 1 using porcin liver esterase (PLE) and orange peel acetylesterase, respectively. The derivative (12-O-deacetylclavulone II) was synthesized by organocuprate reduction of 10,11-epoxyclavulone II which was prepared from 1.
通过分别使用猪肝
酯酶(PLE)和橘皮乙酰
酯酶对1进行选择性酶
水解,从克拉维酮II(1)合成了克拉维酮衍
生物(1-O-去甲基克拉维酮II和4-O-去乙酰基克拉维酮II)。通过10,11-环氧克拉维酮II的
有机铜还原合成了衍
生物(12-O-去乙酰基克拉维酮II),而10,11-环氧克拉维酮II则是由1制备而成的。