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4-(2-Formylphenyl)piperazine-1-carboxylic acid tert-butyl ester

4-(4-Nitrobenzyl)piperazine-1-carboxylic acid tert-butyl ester

1-(3-Hydroxyphenyl)piperazine

1-(4-Hydroxyphenyl)piperazine

1-Boc-4-(4-Formylphenyl)piperazine

1-(5-Chloro-2-methylphenyl)piperazine hydrochloride

4-Chloro-2-(methylthio)pyrimidine-5-carbonitrile

Pyrimidine-2-carboxylic acid

Tetrahydro-2H-pyran-4-carboxaldehyde

1-Methyl-1H-pyrazole-4-carbaldehyde