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3-[2-oxo-2-(1-piperidinyl)ethyl]-1,3-thiazolidine-2,4-dione

4-(3-oxopiperazin-1-yl)benzoic acid

6-oxopiperidine-3-carboxylic acid

3-(3-oxopiperazin-1-yl)propanoic acid

2-(2-oxo-2-piperidin-1-ylethoxy)aniline

4-[(3-oxopiperazine-1-)sulfonyl]butanoic acid

2-(3-oxopiperazin-1-yl)propanoic acid

2-[(3-oxopiperazine-1-)sulfonyl]benzoic acid

2-[(3-oxopiperazin-1-yl)carbonyl]cyclohexanecarboxylic acid

4-[(2-oxopiperidin-1-yl)methyl]benzonitrile

4-[(3-oxopiperazin-1-yl)carbonyl]benzenecarbothioamide

1-(2-oxo-2-piperazin-1-ylethyl)-4-phenylpiperazine

2-[(3-oxopiperazin-1-yl)sulfonyl]benzenecarbothioamide

2-(3-oxopiperazin-1-yl)benzene-1-carbothioamide

1-{4-[2-oxo-2-(piperidin-1-yl)ethoxy]phenyl}propan-1-one

3-[2-oxo-2-(piperidin-1-yl)ethoxy]benzoic acid

2-{[1-oxo-1-(piperidin-1-yl)propan-2-yl]amino}benzonitrile

1-(2-oxo-2-piperazin-1-ylethyl)-4-pyridin-2-ylpiperazine

2-(2-oxopiperidin-1-yl)ethanethioamide

2-(3-oxopiperazin-1-yl)benzaldehyde

3-[2-oxo-2-(piperidin-1-yl)ethoxy]benzaldehyde

2-(3-oxopiperazin-1-yl)quinoline-3-carboxylic acid

2-{5-[(3-oxopiperazine-1-)sulfonyl]thiophen-2-yl}acetic acid

2-OXO-PIPERIDINE-3-CARBOXYLIC ACID (2-AMINO-ETHYL)-AMIDE

4-(2-OXO-PIPERIDIN-1-YL)-BENZONITRILE

2-(2-OXO-2-(PIPERIDIN-1-YL)ETHYLTHIO)-6-AMINOPYRIMIDIN-4(1H)-ONE

2-OXO-1-PIPERIDIN-4-YL-2,3-DIHYDRO-1H-BENZOIMIDAZOLE-5-CARBOXYLIC ACID

4-oxopiperidinium chloride

3-OXO-3-PIPERIDIN-1-YL-PROPIONAMIDINE

(4-OXO-PIPERIDIN-1-YL)-ACETIC ACID HYDROCHLORIDE

3-OXO-PIPERAZINE-2-CARBOXYLIC ACID METHYL ESTER

(2-OXOPIPERIDIN-1-YL)ACETIC ACID

(4-OXO-PIPERIDIN-1-YL)-PHENYL-ACETIC ACID

1-[4-(2-OXO-2-PIPERIDIN-1-YLETHOXY)PHENYL]ETHANOL

(4-OXO-PIPERIDIN-1-YL)-ACETIC ACID

4-[OXO(PIPERAZIN-1-YL)ACETYL]MORPHOLINE

5-OXO-1-(2-PIPERAZIN-1-YL-ETHYL)-PYRROLIDINE-3-CARBOXYLIC ACID

2-(4-oxopiperidin-1-yl)-N-pentylpropanamide

3-[[(4-OXO-2-PIPERIDIN-1-YL-4,5-DIHYDRO-1,3-THIAZOL-5-YL)ACETYL]AMINO]BENZOIC ACID

3-[3-OXO-5-(2-PIPERIDIN-1-YLETHYL)-3,5-DIHYDRO[1,2,4]TRIAZINO[2,3-A]BENZIMIDAZOL-2-YL]PROPANOIC ACID

OXO-PIPERAZIN-1-YL-ACETIC ACID

2-(3-OXO-PIPERAZINE-1-CARBONYL)-BENZOIC ACID

3-(2-oxopiperidin-1-yl)propanoic acid

3-OXO-3-PIPERAZIN-1-YLPROPANENITRILE

4-OXO-PIPERIDINE-1,3-DICARBOXYLIC ACID 1-BENZYL ESTER

(6-OXOPIPERIDIN-2-YL)METHYL 4-METHYLBENZENESULFONATE

3-OXO-3-PIPERAZIN-1-YLPROPANOIC ACID

3-(2-oxo-2-piperazin-1-ylethyl)-1H-indole

1-[2-(3-oxopiperazin-1-yl)ethyl]-1H-1,2,3-triazole-4-carboxylic acid

3-OXO-3-PIPERIDIN-1-YLPROPANETHIOAMIDE

[1-(2-OXO-2-PIPERIDIN-1-YLETHYL)CYCLOPENTYL]ACETIC ACID

2-Oxopiperazinone

2-OXO-PIPERIDINE-3-CARBOXYLIC ACID METHYL ESTER

(2-OXO-PIPERIDIN-3-YL)-CARBAMIC ACID BENZYL ESTER

6-OXO-PIPERIDINE-2-CARBOXYLIC ACID

2-OXO-2-PIPERAZIN-1-YL-ACETAMIDE HCL

4-[(3-OXOPIPERAZIN-1-YL)SULFONYL]BENZOIC ACID

3-[(3-OXOPIPERAZIN-1-YL)SULFONYL]BENZOIC ACID

3-(2-OXO-PIPERIDIN-1-YL)-BENZONITRILE

3-Oxo-Piperidine-1,4-Dicarboxylic Acid 1-Tert-Butyl Ester 4-Ethyl Ester

4-(2-OXO-PIPERIDIN-1-YL)-BENZOIC ACID METHYL ESTER

4-Oxopiperidine-3-carbonitrile

(3-OXO-PIPERAZIN-2-YL)-ACETIC ACID CYCLOHEXYL ESTER

4-OXO-2-PIPERIDIN-1-YL-4H-PYRIDO[1,2-A]PYRIMIDINE-3-CARBALDEHYDE

2-oxo-3-Piperazinylmethyl acetate

4-(4-OXO-PIPERIDINE-1-CARBONYL)ANILINE HYDROCHLORIDE

4-OXO-PIPERIDINE-3-CARBOXYLIC ACID

(3-OXO-PIPERAZIN-2-YL)-ACETIC ACID 2-PHENOXY-ETHYL ESTER

(4-OXO-PIPERIDIN-1-YL)-PHENYL-ACETIC ACID

3-[(2-oxopiperidin-1-yl)methyl]benzonitrile

2-[2-oxo-2-(piperazin-1-yl)ethyl]-2,3-dihydro-1$l^{6},2-benzothiazole-1,1,3-trione

2-(4-oxopiperidin-1-yl)-N-propylacetamide

2-(2-oxopiperidin-1-yl)acetic acid

3-[(3-oxopiperazin-1-yl)methyl]benzenecarbothioamide

2-(4-oxopiperidin-1-yl)acetamide

2-(2-oxopiperidin-1-yl)acetonitrile

1-[4-(2-oxo-2-piperidin-1-ylethoxy)phenyl]methanamine

2-[(3-oxopiperazin-1-yl)methyl]benzonitrile

2-{[2-oxo-2-(piperidin-1-yl)ethyl]amino}benzonitrile

2-({[2-oxo-2-(piperidin-1-yl)ethyl]carbamoyl}amino)propanoic acid

2-(3-oxopiperazin-1-yl)isonicotinonitrile

3-oxo-3-piperidin-1-yl-2-[5-(trifluoromethyl)pyridin-2-yl]propanenitrile

4-[(2-oxopiperidin-1-yl)methyl]benzoic acid

4-Oxo-1,3-piperidinedicarboxylic acid 1-benzyl ester 3-methyl ester

3-OXO-3-PIPERAZIN-1-YL-PROPIONIC ACID

3-OXO-PIPERAZINE-2-CARBOXYLIC ACID

(3-OXO-PIPERAZIN-2-YL)-ACETIC ACID

2-OXO-3-PIPERIDIN-4-YL-2,3-DIHYDRO-1H-BENZOIMIDAZOLE-5-CARBOXYLIC ACID

3-[(2-oxopiperidin-1-yl)methyl]benzoic acid

3-(4-oxopiperidin-1-yl)azepan-2-one

2-{[1-oxo-1-(piperidin-1-yl)propan-2-yl]oxy}benzoic acid

2-[(2-oxopiperidin-1-yl)methyl]benzene-1-carbothioamide

1-{2-[2-oxo-2-(piperidin-1-yl)ethoxy]phenyl}propan-1-one

3-(2-oxopiperidin-1-yl)naphthalene-2-carboxylic acid

2-{[1-oxo-1-(piperidin-1-yl)propane-2-]sulfonyl}propanoic acid

2-{[1-oxo-1-(piperidin-1-yl)propan-2-yl]oxy}benzene-1-carbothioamide

1-[2-oxo-2-(piperidin-1-yl)ethyl]-1H-indole-2-carboxylic acid

2-[2-oxo-2-(piperidin-1-yl)ethoxy]benzoic acid

2-{4-[2-oxo-2-(piperidin-1-yl)ethoxy]phenyl}ethanethioamide

2-[(2-oxopiperidin-1-yl)methyl]benzonitrile

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