4,4a,5,6,8,9-Hexahydrobenzo(g)pyrano(3,4-i)indolizin-2(1H)-one Benzo(g)pyrano(3,4-i)indolizin-2(1H)-one, 4,4a,5,6,8,9-hexahydro- DJ2860000 allo-Dihydrodesmethoxy-beta-erythroidine