(+)-{(1S,10R)-1-(10-chloroethyl)-3-[(5-(2-N,N-dimethylaminoethoxy)-indol-2-yl)-carbonyl]-5-hydroxy-1,2-dihydro-3H-benz[e]indole hydrochloride} 、
[(2R,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[4-[[methyl-[2-(4-nitrophenoxy)carbonyloxyethyl]carbamoyl]oxymethyl]-2-nitrophenoxy]oxan-2-yl]methyl acetate 在
4-二甲氨基吡啶 作用下,
以
N,N-二甲基甲酰胺 为溶剂,
反应 3.0h,
以58%的产率得到[(2R,3S,4S,5R,6S)-3,4,5-triacetyloxy-6-[4-[[2-[[(1S)-1-[(1R)-1-chloroethyl]-3-[5-[2-(dimethylamino)ethoxy]-1H-indole-2-carbonyl]-1,2-dihydrobenzo[e]indol-5-yl]oxycarbonyloxy]ethyl-methylcarbamoyl]oxymethyl]-2-nitrophenoxy]oxan-2-yl]methyl acetate