N-(2-aminoethyl)-2-((((2R,3S,5S,8S,9S,10R,13S,14S,17R)-17-((2S,3R,4R,5R)-3,4-dihydroxy-5,6-dimethylheptan-2-yl)-2,3-dihydroxy-10,13-dimethylhexadecahydro-6H-cyclopenta[a]phenanthren-6-ylidene)amino)oxy)acetamide 、
4-氯-7-硝基苯并-2-氧杂-1,3-二唑 在
碳酸氢钠 作用下,
以
甲醇 为溶剂,
反应 24.0h,
以52%的产率得到2-((((2R,3S,5S,8S,9S,10R,13S,14S,17R)-17-((2S,3R,4R,5R)-3,4-dihydroxy-5,6-dimethylheptan-2-yl)-2,3-dihydroxy-10,13-dimethylhexadecahydro-6H-cyclopenta[a]phenanthren-6-ylidene)amino)oxy)-N-(2-((7-nitrobenzo[c][1,2,5]oxadiazol-4-yl)amino)ethyl)acetamide