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 4,8-Dihydroxyquinoline-2-carboxylic acid 3,4-Dihydro-2(1H)-quinolinone 2-Phenylquinoline 6-Aminoquinoline
 5-Bromoquinoline 4-Chloro-2,8-dimethylquinoline 8-Chloroquinoline 5-Chloroquinoline
 2-Methylquinoline-4-carboxylic acid 2-Chloro-3-methylquinoline 4-Bromo-1-chloroisoquinoline 6,8-Dimethoxy-4-methylquinoline
 7-Bromo-5-Chloro-8-Hydroxyquinoline 2-Methyl-8-nitroquinoline 6-Chloro-2-methylquinoline 7-Methyl-8-nitroquinoline
 2,4-Dichloroquinoline 2,7-Dimethylquinoline 2-Amino-6-bromoquinazoline 1-Amino-6-methylisoquinoline
 1-Chloro-6-methylisoquinoline 6-Methoxyisoquinoline 6-Hydroxyisoquinoline 7-Chloro-4-hydroxyquinoline-3-carboxylic acid
 4-Bromoquinoline 8-Quinolinol-5-sulfonic acid 1-Chloroisoquinoline-7-carbaldehyde 3-Ethyl-8-methoxyquinoline
 3-Ethylquinoline 2-Quinolinecarboxylic acid 7-(3-Bromopropoxy)-3,4-dihydroquinolin-2(1H)-one 6-Bromoisoquinoline
 6-Methoxyquinoline 6-Methoxy-8-nitroquinoline 6-Amino-2-methylquinoline 4-Amino-2-methylmercaptoquinazoline
 2-Methyl-6-nitroquinoline Quinoline-2-boronic acid Quinoline-6-boronic acid Isoquinoline-5-boronic acid
 Quinoline-8-boronic acid 2,4-Diamino-5-fluoroquinazoline 2-(4-(Tert-butoxycarbonyl)piperazin-1-yl)-2-oxoacetic acid 4-Boc-1-(benzyloxycarbonyl)piperazine-2-carboxylic acid
 4-Benzylpiperazine-1-carboxamidine (R)-2-Piperazinecarboxylic acid dihydrochloride 3-Piperazin-1ylpyrazine-2-carbonitrile (2-((4-Methylpiperazin-1-yl)methyl)phenyl)methanol
 2-(4-Methylpiperazino)benzaldehyde 3-Methyl-2-piperazine-1-yl quinoline 4-Methyl-2-piperazine-1-yl quinoline 2-(4-Methylpiperazin-1-yl)ethylamine
 4-(4-Benzylpiperazino)benzaldehyde 3-[(4-Methylpiperazin-1-yl)methyl]benzaldehyde 2-Piperazin-1-yl-benzaldehyde 4-Piperazin-1-yl-benzaldehyde
 2-[4-[2-Nitro-4-(trifluoromethyl)phenyl]piperazino]-1-ethanol 3-(4-Methylpiperazin-1-yl)propionic acid (4-Methylpiperazin-1-yl)-oxo-acetic acid 4-(4-Methylpiperazino)benzoic acid
 3-(4-Methylpiperazin-1-yl)benzoic acid 2-(4-(2-Hydroxyethyl)piperazin-1-yl)ethanesulfonic acid 2-(4-Methylpiperazin-1-yl)benzyl alcohol 3-[4-(2-Hydroxyethyl)piperazin-1-yl]-3-oxo-propionic acid
 (4-Carbamoylpiperazin-1-yl)oxo-acetic acid [4-(2-Butyl)piperazin-1-yl]oxo-acetic acid [4-(2-Butyl)piperazin-1-yl]acetic acid 3-[4-(2-Hydroxyethyl)piperazin-1-yl]propionic acid
 [4-(2-Hydroxyethyl)piperazin-1-yl]aceticacid 4-[4-(2-Hydroxyethyl)piperazin-1-yl]-4-oxo-butyric acid 3-(4-Methylpiperazin-1-yl)aniline 4-Oxo-4-piperazin-1-yl-butyric acid
 Oxo-piperazin-1-yl-acetic acid 4-(4-Methylpiperazin-1-yl)benzylamine 3-(4-Methyl-1-piperazinyl)benzenemethanamine 2-(4-Methyl-1-piperazinyl)aniline
 1-[2-(4-Methylpiperazin-1-yl)phenyl]methanamine N-Methyl-5-homopiperazinone (4-Carbamoylpiperazin-1-yl)acetic acid 3-(4-Carbamoylpiperazin-1-yl)propionic acid
 2-Amino-1-[4-(2-hydroxyethyl)piperazin-1-yl]ethanone dihydrochloride 1-Methyl-4-aminopiperazine 2-(Piperazin-1-yl)-N-thiazol-2-yl-acetamidedihydrochloride 1-Benzyl-3-phenylpiperazine
 4-Boc-1-Fmoc-2-piperazine carboxylic acid 1-Boc-4-Fmoc-2-piperazine carboxylic acid 4-Boc-1-Fmoc-2-piperazine acetic acid 1-[(Tetrahydro-2-furanyl)methyl]piperazine
 4-Boc-1-Cbz-2-piperazine carboxylic acid 4-Boc-2-Piperazineacetic acid methyl ester 4-Cbz-piperazine-2-carboxylate methyl ester (R)-tert-butyl 3-(tert-butylcarbamoyl)piperazine-1-carboxylate
 1-N-Boc-3-phenylpiperazine (S)-tert-butyl 3-(tert-butylcarbamoyl)piperazine-1-carboxylate 1-Boc-3-isobutylpiperazine (4-Benzylpiperazin-2-yl)methanol
 N-Acetylpiperazine 1-(3-Carboxypyridyl-2)-2-phenyl-4-methyl piperazine 1-(4-Fluorobenzyl)homopiperazinedihydrochloride N-Isopropylpiperazine
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