diosindigo A

7-methyl-5-phenylmethoxynaphthalene-1,4-dione

1,5-Bis(benzyloxy)-4-methoxy-7-methylnaphthalin

8-Benzyloxy-4-methoxy-6-methyl-1-naphthol

4,8-Bis(benzyloxy)-6-methyl-1-naphthol