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

(+/-)-(10α)-8,8-(Ethylenedioxy)-2-methoxy-1-(methoxycarbonyl)-7-<(methoxymethyl)oxy>gibba-1,3,4a(10a),4b-tetraene-10-carboxylic acid

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

methyl 7-hydroxy-2-methoxy-8-oxo-6,8,9,10-tetrahydro-7H-7,9a-methanobenzo[a]azulene-1-carboxylate