methyl 5-nitrothiophene-3-carboxylate

methyl 5-oxa-2,6-diazaspiro[3.4]oct-6-ene-7-carboxylate hydrochloride

methyl 5-oxa-2-azaspiro[3.4]oct-7-ene-7-carboxylate hydrochloride

methyl 5-oxa-2-azaspiro[3.4]octane-7-carboxylate; trifluoroacetic acid

methyl 5-oxa-2-azaspiro[3.5]nonane-6-carboxylate hydrochloride

methyl 5-oxa-8-azaspiro[3.5]nonane-7-carboxylate hydrochloride

methyl 5-oxa-8-azaspiro[3.5]nonane-9-carboxylate hydrochloride

methyl 5-oxa-9-azaspiro[3.5]nonane-2-carboxylate

methyl 5-oxaspiro[3.4]oct-7-ene-7-carboxylate

methyl 5-oxaspiro[3.4]oct-7-ene-8-carboxylate

methyl 5-oxaspiro[3.5]non-7-ene-7-carboxylate

methyl 5-oxo-1-(propan-2-yl)pyrrolidine-2-carboxylate

methyl 5-oxo-1-phenylpyrrolidine-3-carboxylate

methyl 5-oxo-1-propylpyrrolidine-3-carboxylate

methyl 5-oxo-1H,5H-imidazo[1,2-a]pyrimidine-6-carboxylate

methyl 5-oxo-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine-6-carboxylate

methyl 5-oxo-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine-7-carboxylate

methyl 5-oxo-2,3,4,5-tetrahydro-1H-1,4-benzodiazepine-9-carboxylate

methyl 5-oxo-2-phenylpyrrolidine-2-carboxylate

methyl 5-oxo-2H,3H,5H-imidazo[2,1-b][1,3]thiazine-7-carboxylate

methyl 5-oxo-4,5-dihydro-1H-pyrazole-3-carboxylate

methyl 5-oxo-4-azaspiro[2.4]heptane-6-carboxylate

methyl 5-oxo-4-propanoylheptanoate

methyl 5-oxo-5,6,7,8-tetrahydronaphthalene-1-carboxylate

methyl 5-oxo-5,6,7,8-tetrahydronaphthalene-2-carboxylate

methyl 5-oxo-5,6,7,8-tetrahydroquinoline-3-carboxylate

methyl 5-oxo-5,6,7,8-tetrahydroquinoline-6-carboxylate

methyl 5-oxo-5,6,7,8-tetrahydroquinoxaline-6-carboxylate

methyl 5-oxo-5,6-dihydro-1,6-naphthyridine-8-carboxylate

methyl 5-oxo-5-phenylpentanoate

methyl 5-oxo-5H,6H,7H-cyclopenta[b]pyridine-2-carboxylate

methyl 5-oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulene-2-carboxylate

methyl 5-oxo-6,7,8,9-tetrahydro-5H-benzo[7]annulene-6-carboxylate

methyl 5-oxo-7-(trifluoromethanesulfonyloxy)-1,2,3,5-tetrahydroindolizine-3-carboxylate

methyl 5-oxoazepane-4-carboxylate hydrochloride

methyl 5-oxobicyclo[2.2.1]heptane-2-carboxylate

methyl 5-oxocyclohex-3-ene-1-carboxylate

methyl 5-oxoheptanoate

methyl 5-oxohexanoate

methyl 5-oxooxolane-2-carboxylate

methyl 5-oxopentanoate

methyl 5-oxopiperazine-2-carboxylate

methyl 5-oxopiperidine-3-carboxylate hydrochloride

methyl 5-oxopyrrolidine-3-carboxylate

methyl 5-oxospiro[2.3]hexane-1-carboxylate