methyl 2-oxo-1,2-dihydrospiro[indole-3,4'-piperidine]-5-carboxylate

methyl 2-oxo-1,2-dihydrospiro[indole-3,4'-piperidine]-6-carboxylate

methyl 2-oxo-1,2-dihydrospiro[indole-3,4'-piperidine]-7-carboxylate

methyl 2-oxo-1,3-diazinane-4-carboxylate hydrochloride

methyl 2-oxo-1,3-oxazolidine-4-carboxylate

methyl 2-oxo-1,3-oxazolidine-5-carboxylate

methyl 2-oxo-1-(trifluoromethyl)-1,2-dihydropyridine-3-carboxylate

methyl 2-oxo-1-azaspiro[3.3]heptane-6-carboxylate

methyl 2-oxo-1-azaspiro[3.4]octane-6-carboxylate

methyl 2-oxo-1-azaspiro[3.5]nonane-6-carboxylate

methyl 2-oxo-1-azaspiro[3.5]nonane-7-carboxylate

methyl 2-oxo-1H,2H,3H,4H-pyrido[2,3-d]pyrimidine-6-carboxylate

methyl 2-oxo-1H,2H,3H-imidazo[4,5-b]pyrazine-5-carboxylate

methyl 2-oxo-1H,2H,3H-imidazo[4,5-c]pyridine-7-carboxylate

methyl 2-oxo-1H,2H,3H-pyrrolo[2,3-c]pyridine-4-carboxylate

methyl 2-oxo-1H,2H,5H,6H,7H,8H,9H-cyclohepta[b]pyridine-3-carboxylate

methyl 2-oxo-1H,2H-[1,3]oxazolo[5,4-c]pyridine-4-carboxylate

methyl 2-oxo-2,3-dihydro-1,3-benzothiazole-6-carboxylate

methyl 2-oxo-2,3-dihydro-1,3-benzoxazole-4-carboxylate

methyl 2-oxo-2,3-dihydro-1,3-benzoxazole-5-carboxylate

methyl 2-oxo-2,3-dihydro-1,3-benzoxazole-6-carboxylate

methyl 2-oxo-2,3-dihydro-1,3-benzoxazole-7-carboxylate

methyl 2-oxo-2,3-dihydro-1H-1,3-benzodiazole-4-carboxylate

methyl 2-oxo-2,3-dihydro-1H-1,3-benzodiazole-5-carboxylate

methyl 2-oxo-2,3-dihydro-1H-indene-1-carboxylate

methyl 2-oxo-2,3-dihydro-1H-indole-3-carboxylate

methyl 2-oxo-2,3-dihydro-1H-indole-5-carboxylate

methyl 2-oxo-2,3-dihydro-1H-indole-6-carboxylate

methyl 2-oxo-2,5,6,7-tetrahydro-1H-azepine-3-carboxylate

methyl 2-oxo-2-(2-oxocyclopentyl)acetate

methyl 2-oxo-2-(thian-4-yl)acetate

methyl 2-oxo-2-(trichlorothiophen-3-yl)acetate

methyl 2-oxo-2-phenylacetate

methyl 2-oxo-2-[4-(tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]acetate

methyl 2-oxo-2H,3H-[1,3]oxazolo[4,5-b]pyridine-6-carboxylate

methyl 2-oxo-2H-pyran-4-carboxylate

methyl 2-oxo-2H-pyran-5-carboxylate

methyl 2-oxo-3-(prop-2-en-1-yl)pyrrolidine-3-carboxylate

methyl 2-oxo-3-(pyridin-2-yl)propanoate

methyl 2-oxo-3-azabicyclo[3.1.1]heptane-1-carboxylate

methyl 2-oxo-3-propoxypropanoate

methyl 2-oxo-3-[4-(trifluoromethyl)phenyl]propanoate

methyl 2-oxo-4-(trifluoromethyl)cyclopentane-1-carboxylate

methyl 2-oxo-4-phenylcyclopentane-1-carboxylate

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