Methyl 2-(chloroacetoxy)-2-(diazoacetyl)-7-methoxy-1,2,3,4-tetrahydrofluorene-8-carboxylate

Methyl 6-<(N,N-dimethylamino)methyl>-2-methoxybenzoate

7-Cyano-7-hydroxy-2-methoxy-6,7,8,9-tetrahydro-5H-fluorene-1-carboxylic acid methyl ester

Dimethyl 2-hydroxy-7-methoxy-1,2,3,4-tetrahydrofluorene-2,8-dicarboxylate

2-Hydroxy-7-methoxy-8-(methoxycarbonyl)-1,2,3,4-tetrahydrofluorene-2-carboxylic acid