13699-43-9 N-Allyl-2',6'-dimethyl-2',3',5',6'-tetrahydro(4'-spiro-alpha)pyranohomophthalimide Spiro(isoquinoline-4(1H),4'-(4H)pyran)-1,3(2H)-dione, 2',3',5',6'-tetrahydro-2-allyl-2',6'-dimethyl-