126443-96-7 3-(((2-((4-Azido-2-nitrophenyl)amino)ethyl)amino)carbonyl)-O4-deacetyl-3-de(methoxycarbonyl)vincaleukoblastine 3-(((2-Amino-(4-azido-2-nitrophenyl)ethyl)amino)carbonyl)-O(4)-deacetyl-3-de-(methoxycarbonyl)vincaleukoblastine Napavin Vincaleukoblastine, 3-(((2-((4-azido-2-nitrophenyl)amino)ethyl)amino)carbonyl)-O4-deacetyl-3-de(methoxycarbonyl)-