3-Pyrrolin-2-one, 3-(11-(hexahydro-3-hydroxy-5-methyleuro(3,2-b)furan-2-yl)-2,4,6,8,10-undecapentaenoyl)-4-hydroxy-5-isopropyl-1-methyl-, (stereoisomer) 4987-27-3 BRN 1093555 Erythroskyrine