Synonyms: Spiro[2H-indole-2,1'(5'H)-[3,7]methanoindolizine]-9'-carboxylicacid,6'-ethylidene-1,2',3,3',6',7',8',8'a-octahydro-9'-(hydroxymethyl)-1-methyl-3-oxo-,methyl ester, (1'R,3'S,6'E,7'S,8'aS,9'R)- (9CI); Voachalotine pseudoindoxyl;Spiro[2H-indole-2,1'(5'H)-[3,7]methanoindolizine]-9'-carboxylic acid,6'-ethylidene-1,2',3,3',6',7',8',8'a-octahydro-9'-(hydroxymethyl)-1-methyl-3-oxo-,methyl ester, [1'R-(1'a,3'b,6'E,7'b,8'aa,9'R*)]-; [1'R-(1'a,3'b,6'E,7'b,8'aa,9'R*)]-Methyl 6'-ethylidene-1,2',3,3',6',7',8',8'a-octahydro-9'-(hydroxymethyl)-1-methyl-3-oxospiro[2H-indole-2,1'(5'H)-[3,7]methanoindolizine]-9'-carboxylate