N-Benzyl-4,5-diethoxy-1,8-naphthalenedicarbimide

2-Benzyl-6,7-diethoxy-2H-benzo[de]isoquinoline-1,3-dione

6,7-diethoxy-2-(phenylmethyl)-1H-benz[de]isoquinoline-1,3(2H)-dione

6,7-Diethoxy-2-(phenylmethyl)-1H-benzo[de]isoquinoline-1,3(2H)-dione