The molecule is an acetate ester and a hemiaminal. It derives from an ajmaline. It is a conjugate base of a 17-O-acetylajmalinium.
[(1R,9R,10S,12R,13S,14R,16S,18R)-13-ethyl-14-hydroxy-8-methyl-8,15-diazahexacyclo[14.2.1.01,9.02,7.010,15.012,17]nonadeca-2,4,6-trien-18-yl] acetate