Synonyms: Gelsedine,11-methoxy-;Spiro[3H-indole-3,7'(6'H)-[3,6]methano[1H]oxepino[4,3-b]pyrrol]-2(1H)-one,2'-ethyl-2',3',3'a,4',8',8'a-hexahydro-1,6-dimethoxy-,(2'R,3S,3'S,3'aS,6'R,8'aS)- (9CI); 11-Methoxygelsedine; Gelsemicine;Spiro[3H-indole-3,7'(6'H)-[3,6]methano[1H]oxepino[4,3-b]pyrrol]-2(1H)-one,2'-ethyl-2',3',3'a,4',8',8'a-hexahydro-1,6-dimethoxy-, [2'R-(2'a,3'a,3'ab,6'a,7'a,8'ab)]-