AIDS-139145 AIDS139145 Ervatamine, 19-20-Dehydro: N(1)-methoxy Methyl 4-ethylidene-7-methoxy-2-methyl-6-oxo-2,3,4,4a,5,6,7,12-octahydropyrido[3',4':4,5]cyclohepta[1,2-b]indole-12a(1H)-carboxylate NSC647461