AA157A Isoquinoline, 1-[[3,4-dimethoxy-2-[4-[(1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-1-isoquinolinyl)methyl]phenoxy]phenyl]methyl]-1,2,3,4-tetrahydro-6,7-dimethoxy-2-methyl-, [S-(R*,R*)]- NSC235756