6-chloro-2,3,4,9-tetrahydro-1H-carbazol-1-amine 、
4-(14,14-dimethyl-12-oxo-5,8,13-trioxa-2,11-diazapentadecan-1-oyl)benzoic acid 以58%的产率得到1,1-Dimethylethyl [2-({2-[(2-{[(4-{[(6-chloro-2,3,4,9-tetrahydro-1H-carbazol-1-yl)amino]carbonyl}phenyl)carbonyl]amino}ethyl)oxy]ethyl}oxy)ethyl]carbamate