Synonyms: Oxyacanthan,6',7-epoxy-6,12'-dimethoxy-2'-methyl-, (1a,1'a)-;2H-22,26-Epoxy-1,24:12,15-dietheno-6,10-metheno-16H-pyrido[2',3':17,18][1,10]dioxacycloeicosino[2,3,4-ij]isoquinoline,oxyacanthan deriv.; Tetrahydrotrigilletimine; Trigilletimine, tetrahydro-