Synonyms: C-Homo-16(15H)-oxaerythrinan-15-one,1,6-didehydro-14,17-dihydro-3-hydroxy-, (3b)-; C-Homo-b-erythroidine, O-demethyl-2,7-dihydro- (8CI);1H,3H,5H-Pyrano[4',3':3,4]azepino[2,1-i]indol-3-one,4,6,7,9,10,12,13,14-octahydro-6-hydroxy-, [4bS-(4bR*,6S*)]-; Isophellibiline;O-Demethyldihydro-C-homo-b-erythroidine