(S)-2-Benzyloxycarbonylamino-succinic acid 1-benzyl ester 4-(5,11-dimethyl-6H-pyrido[4,3-b]carbazol-9-yl) ester
1,4-dimethyl-6-pivaloyloxy-3-(N-tosyl-2,2-diethoxyethylaminomethyl)-9H-carbazole
Succinic acid benzyloxycarbonylmethyl ester 5,11-dimethyl-6H-pyrido[4,3-b]carbazol-9-yl ester
Heptanedioic acid benzyl ester 5,11-dimethyl-6H-pyrido[4,3-b]carbazol-9-yl ester
Pentanedioic acid benzyl ester 5,11-dimethyl-6H-pyrido[4,3-b]carbazol-9-yl ester