7-甲氧基-1,6-二甲基异喹啉-5,8-二酮

5-methoxy-1,6-dimethyl-7,8-dihydroisoquinoline-7,8-dione

5,7,8-trimethoxy-1,6-dimethylisoquinoline

3-ethoxycarbonyl-1-formyl-5,7,8-trimethoxy-6-methylisoquinoline

3-ethoxycarbonyl-1-hydroxymethyl-5,7,8-trimethoxy-6-methylisoquinoline