丁炔二酸二甲酯 、
(2R,3R,4S,5S,6R)-2-(1'H-[2,2']Biindolyl-1-yl)-6-hydroxymethyl-tetrahydro-pyran-3,4,5-triol 以
硝基苯 为溶剂,
以24%的产率得到11-((2R,3R,4S,5S,6R)-3,4,5-Trihydroxy-6-hydroxymethyl-tetrahydro-pyran-2-yl)-11,12-dihydro-11,12-diaza-indeno[2,1-a]fluorene-5,6-dicarboxylic acid dimethyl ester