31β-hydroxy-32,33-dihydro-8-hydroxymanzamine A 、
乙酸酐 在
吡啶 作用下,
反应 12.0h,
以56%的产率得到[(1R,2R,5E,7S,12R,16Z,25R)-3-acetyl-5-(1-acetyloxyethylidene)-25-(8-acetyloxy-9H-pyrido[3,4-b]indol-1-yl)-11,22-diazapentacyclo[11.11.2.12,22.02,12.04,11]heptacosa-3,13(26),16-trien-7-yl] acetate