methyl (6R,12aS)-1,4-dioxo-2,3,6,7,12,12a-hexahydropyrazino[1,2-a]β-carboline-6-carboxylate 在
sodium carbonate 作用下,
以
二氯甲烷 为溶剂,
反应 18.0h,
生成 methyl (1R,15R)-10,13-dioxo-3,11,14,17-tetrazahexacyclo[12.11.0.02,11.04,9.016,24.018,23]pentacosa-2,4,6,8,16(24),18,20,22-octaene-15-carboxylate