b-Erythroidine

beta-erythroidine

1,2,6,7-Tetradehydro-14,17-dihydro-3β-methoxy-16(15H)-oxaerythrinan-15-one

3β-Methoxy-1,2,6,7-tetradehydro-14,15,16,17-tetrahydro-16-oxaerythrinan-15-one