103974-27-2 4-Nabv N-(4-Azidobenzoyl)-N'-(2-aminoethyl)vindesine N-(4-Azidobenzoyl)-N'-beta-aminoethylvindesine NABV Vincaleukoblastine, 3-(((2-aminoethyl)amino)carbonyl)-16'-(4-azidobenzoyl)-O4-deacetyl-3-de(methoxycarbonyl)-