重氮甲烷 、
2-[2-[(E)-4-Dimethylamino-phenylimino]-2-(6-hydroxy-2,7-dimethoxy-1,4-dioxo-1,4-dihydro-carbazol-9-yl)-acetylamino]-3-(1H-indol-3-yl)-propionic acid 以
1,4-二氧六环 为溶剂,
以80%的产率得到2-{[3-(4-Dimethylamino-phenyl)-4-(2,6,7-trimethoxy-1,4-dioxo-1,4-dihydro-carbazol-9-yl)-4,5-dihydro-3H-[1,2,3]triazole-4-carbonyl]-amino}-3-(1H-indol-3-yl)-propionic acid methyl ester