2H-pyrrol-2-one, 3-[(4E,6E,8S,11Z)-13-[(2S)-2,5-dihydro-3-hydroxy-4-methyl-5-oxo-2-furanyl]-4,8,12-trimethyl-4,6,11-tridecatrienyl]-1,5-dihydro-1-(3-methylbutyl)- 3-[13-(3-Hydroxy-4-methyl-5-oxo-2,5-dihydro-furan-2-yl)-4,8,12-trimethyl-trideca-4,6,11-trienyl]-1-(3-methyl-butyl)-1,5-dihydro-pyrrol-2-one InChI=1/C30H45NO4/c1-21(2)16-18-31-19-17-26(29(31)33)15-9-13-23(4)11-7-10-22(3)12-8-14-24(5)20-27-28(32)25(6)30(34)35-27/h7,10-11,14,17,21-22,27,32H,8-9,12-13,15-16,18-20H2,1-6H3/b10-7+,23-11+,24-14-/t22-,27+/m1/s Sarcotrine A rel-3-{(4E,6E,8R,11Z)-13-[(2R)-3-hydroxy-4-methyl-5-oxo-2,5-dihydrofuran-2-yl]-4,8,12-trimethyltrideca-4,6,11-trien-1-yl}-1-(3-methylbutyl)-1,5-dihydro-2H-pyrrol-2-one