[1,1'-Biphenyl]-3-carboxaldehyde, 6-hydroxy-2'-methoxy-5'-[[(1S)-1,2,3,4-tetrahydro-7-hydroxy-6-methoxy-2-methyl-8-[(1,2,3,4-tetrahydro-6-methoxy-2-methyl-1-oxo-7-isoquinolinyl)oxy]-1-isoquinolinyl]methyl]-