Vinblastine Impurity A

Chemical Name: (5S,7R,9S)-9-((3aR,3a1R,4R,5S,5aR,10bR)-4-acetoxy-3a-ethyl-5-hydroxy-8-methoxy-5-(methoxycarbonyl)-6-methyl-3a,3a1,4,5,5a,6,11,12-octahydro-1H-indolizino[8,1-cd]carbazol-9-yl)-3-(chloromethyl)-5-ethyl-5-hydroxy-9-(methoxycarbonyl)-1,2,3,4,5,6,7,8,9,10-decahydro-3,7-methano[1]azacycloundecino[5,4-b]indol-3-ium chloride

Smile: O[C@@]1(CC)CC2([H])CC(C3=CC4=C(N(C)[C@@]5([H])[C@@](O)(C(OC)=O)[C@H](OC(C)=O)[C@@]6(CC)[C@@]7([H])C54CCN7CC=C6)C=C3OC)(C(OC)=O)C(N8)=C(CC[N@+](C2)(CCl)C1)C9=C8C=CC=C9.[Cl-]