methyl (4R)-4-(2-vinyl-quinolin-3-yloxy)-1-((2S)-2-cyclopentyl-2-(trans-2-pent-4-en-1-ylcyclopentyloxycarbonylamino)acetyl)-L-prolinate 在
Zhan Catalyst 作用下,
以
1,2-二氯乙烷 为溶剂,
反应 1.5h,
以42%的产率得到methyl (3aR,7S,10S,12R,20E,24aR)-7-cyclopentyl-5,8-dioxo-1,2,3,3a,5,6,7,8,11,12,22,23,24,24a-tetradecahydro-10H-9,12-methanocyclopenta[18,19][1,10,3,6]dioxadiazacyclononadecino[12,11-b]quinoline-10-carboxylate