(-)-Gyroamericine (-)-O6-Demethylphaeanthine 102487-17-2 16H-1,24:6,9-dietheno-11,15-metheno-2H-pyrido(2',3':17,18)(1,11)dioxacycloeicosino(2,3,4-ij)isoquinolin-21-ol, 3,4,4a,5,16a,17,18,19-octahydro-12,22,26-trimethoxy-4,17-dimethyl-, (4aR,16aR)- Berbaman-6-ol, 6',7,12-trimethoxy-2,2'-dimethyl-, (1'beta)- Gyroamericine