2H,5H-pyrano[3,2-e]-1,3-oxazine, hexahydro-3-(5-isoquinolinyl)- 3-isoquinolin-5-ylhexahydro-2H,5H-pyrano[3,2-e][1,3]oxazine InChI=1/C16H18N2O2/c1-3-12-9-17-7-6-14(12)15(5-1)18-10-13-4-2-8-19-16(13)20-11-18/h1,3,5-7,9,13,16H,2,4,8,10-11H