Showing structure for 4-{[(1r)-6,7-dimethoxy-2-methyl-3,4-dihydro-1h-isoquinolin-1-yl]methyl}-2-(4-{[(1s)-6,7-dimethoxy-2-methyl-3,4-dihydro-1h-isoquinolin-1-yl]methyl}phenoxy)phenol