1-methoxy-4-carbomethoxybenzonorbornadiene

1H-Indene-1-carboxylic acid, 3-methoxy-, methyl ester

methyl (3aR,4R,9S,9aS)-9-methoxy-1,3-dioxo-3,3a,9,9a-tetrahydro-4,9-methanonaphtho[2,3-c]furan-4(1H)-carboxylate