(1R,4aR,12aS)-3-acetyl-1-amino-4,4a,6,7-tetrahydroxy-8,11-dimethyl-12,12a-dihydro-1H-tetracene-2,5-dione,hydrochloride 在
碳酸氢钠 作用下,
以
四氢呋喃 、
苯 为溶剂,
生成 [(1R,4aS,12aS)-3-((E)-3-Dimethylamino-acryloyl)-2,4a,6,7-tetrahydroxy-8,11-dimethyl-4,5-dioxo-1,4,4a,5,12,12a-hexahydro-naphthacen-1-yl]-carbamic acid benzyl ester