(Z)-4-[2-((S)-1-Oxazol-5-yl-ethyl)-2,3,4,9-tetrahydro-1H-β-carbolin-1-yl]-but-2-enoic acid ethyl ester 以
甲苯 为溶剂,
反应 24.0h,
以40%的产率得到[1S-(1α,2α,4aα,5α,13bβ,14aβ)]-1,2,7,8,13,13b,14,14a-octahydro-5-methyl-5H-2,4a-epoxyindolo[2',3':3,4]pyrido[1,2-b][2,7]naphthyridine-1-carboxylic acid ethyl ester