Synonyms: Isoorientalinone,O-methyl- (8CI);Spiro[2,5-cyclohexadiene-1,7'(1'H)-cyclopent[ij]isoquinolin]-4-one,2',3',8',8'a-tetrahydro-3,5',6'-trimethoxy-1'-methyl-, (7'R-trans)-;(-)-Isoroemerialinone; (-)-O-Methylisoorientalinone; Isoroemerialinone;O-Methylisoorientalinone