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4-Amino-2-methylmercaptoquinazoline

2,4-Diamino-5-fluoroquinazoline

3-Piperazin-1ylpyrazine-2-carbonitrile

2-(4-Methylpiperazino)benzaldehyde

3-Methyl-2-piperazine-1-yl quinoline

4-(4-Benzylpiperazino)benzaldehyde

3-[(4-Methylpiperazin-1-yl)methyl]benzaldehyde

2-[4-[2-Nitro-4-(trifluoromethyl)phenyl]piperazino]-1-ethanol

3-[4-(2-Hydroxyethyl)piperazin-1-yl]-3-oxo-propionic acid

(4-Carbamoylpiperazin-1-yl)oxo-acetic acid