Synonyms: 2-Butenoicacid, 2-(2-hydroxymethyl)-,[hexahydro-7-[(2-methyl-1-oxo-2-butenyl)oxy]-1H-pyrrolizin-1-yl]methyl ester,[1S-[1a(E),7a(E),7ab]]-; 2-Butenoic acid, 2-(hydroxymethyl)-,[(1S,7R,7aR)-hexahydro-7-[[(2E)-2-methyl-1-oxo-2-butenyl]oxy]-1H-pyrrolizin-1-yl]methylester, (2E)- (9CI); Neosarranicine