allyl (1aS,8S,8aR,8bS)-8-((carbamoyloxy)methyl)-8a-methoxy-5-methyl-4-(((9Z,12Z)-octadeca-9,12-dienoyl)oxy)-7-oxo-1a,8,8a,8b-tetrahydro-7H-spiro[azirino[2',3':3,4]pyrrolo[1,2-a]indole-6,2'-[1,3]dioxolane]-1(2H)-carboxylate 在
四(三苯基膦)钯 、
甲酸:三乙胺 1:1 作用下,
以
四氢呋喃 为溶剂,
反应 0.83h,
以76%的产率得到(1a'S,1b'R,2'S,7a'R)-1b'-ethyl-1a',5',7a'-trimethyl-2'-(3-methylbut-3-en-1-yl)-3'-methylene-6'-((10Z,13Z)-2-methylenenonadeca-10,13-dien-1-yl)-1',1a',1b',2',3',6b',7',7a'-octahydrospiro[cyclopentane-1,4'-cyclopropa[3,4]cyclopenta[1,2-a]indene]