1,4-Diformylpiperazine
6-(4-Methylpiperazin-1-yl)picolinaldehyde
tert-Butyl 4-(6-formylpyridin-3-yl)piperazine-1-carboxylate
tert-Butyl 4-(5-formylpyridin-2-yl)piperazine-1-carboxylate
4-(4-Benzylpiperazin-1-yl)benzaldehyde
1-Piperazinecarbaldehyde
tert-Butyl 4-formylpiperazine-1-carboxylate
tert-Butyl 4-(3-formylpyridin-2-yl)piperazine-1-carboxylate
Methyl 6-(4-formylpiperazin-1-yl)-4-methylnicotinate
2-(4-(2-Methoxyphenyl)piperazin-1-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde
4-(5-Formyl-4-methylpyridin-2-yl)piperazine-1-carbaldehyde
4-Methyl-6-(piperazin-1-yl)nicotinaldehyde
(S)-1-(tert-Butoxycarbonyl)-4-(2-formylpyridin-3-yl)piperazine-2-carboxylic acid
6-(4-Ethylpiperazin-1-yl)-2-methylnicotinaldehyde
4-Chloro-2-(4-phenylpiperazin-1-yl)thiazole-5-carbaldehyde
2-(4-Methylpiperazin-1-yl)-4-oxo-4H-pyrido[1,2-a]pyrimidine-3-carbaldehyde
4-Hydroxypiperazine-1-carbaldehyde
4-(5-(tert-Butylthio)-4-methylpyridin-2-yl)piperazine-1-carbaldehyde
2-Methyl-6-(4-methylpiperazin-1-yl)nicotinaldehyde
4-Methyl-6-(4-methylpiperazin-1-yl)nicotinaldehyde
