1,4-Naphthalenediol, 5,7-dimethoxy-

5,8-Dihydroxy-1-methoxy-3-oxo-1,4-ethano-1,2,3,4-tetrahydro-naphthalin

1-Methoxy-3,5,8-trioxo-1,4-ethano-1,2,3,4,5,8-hexahydro-naphthalin

1-Methoxy-5,8-diacetoxy-3-oxo-1,4-ethano-1,2,3,4-tetrahydro-naphthalin

1,3-Dimethoxy-1,4-ethano-1,4-dihydro-naphthalindion-(5,8)