(41S,13aS)-13a-ethyl-2,3,41,5,6,6a,6a1,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylic acid-D4; Apovincaminic Acid-d4
(41S,13aS)-13a-ethyl-2,3,41,5,6,6a,6a1,13a-octahydro-1H-indolo[3,2,1-de]pyrido[3,2,1-ij][1,5]naphthyridine-12-carboxylic acid-D4; Apovincaminic Acid-d4