The molecule is a derivative of vindoline lacking the 11-O-methyl and 17-O-acetyl substituents. It is a vinca alkaloid, a methyl ester, a secondary alcohol and a tertiary alcohol. It derives from a vindoline. It is a conjugate base of an 11-O-demethyl-17-O-deacetylvindolinium(1+).
methyl (1R,9R,10S,11R,12R,19R)-12-ethyl-5,10,11-trihydroxy-8-methyl-8,16-diazapentacyclo[10.6.1.01,9.02,7.016,19]nonadeca-2(7),3,5,13-tetraene-10-carboxylate