3,11-diisopropoxy-14-(3-isopropoxy-4-methoxyphenyl)-2,12-dimethoxy-6H-[1]benzopyrano[4′,3′:4,5]pyrrolo[2,1-a]-isoquinolin-6-one

7-isopropoxy-1-(3-isopropoxy-4-methoxyphenyl)-3-[2-(3-isopropoxy-4-methoxyphenyl)ethyl]-8-methoxy-4-oxo-[1]benzopyrano[3,4-b]pyrrol-4(3H)-one

8,9-dihydro-3,11-diisopropoxy-2,12-dimethoxy-6H-[1]benzopyrano[4',3':4,5]pyrrolo[2,1-a]isoquinolin-6-one

14-bromo-3,11-diisopropoxy-2,12-dimethoxy-8,9-dihydro-6H-[1]benzopyrano[4’,3’:4,5]pyrrolo[2,1-a]isoquinolin-6-one

3-(2,2-dimethoxyethyl)-7-isopropoxy-1-(3-isopropoxy-4-methoxyphenyl)-2-(4-isopropoxy-3-methoxyphenyl)-8-methoxy[1]benzopyrano[3,4-b]pyrrol-4(3H)-one