4-(2,2-Diethoxyethyl)-piperazine-1-carboxylic acid tert-butyl ester hydrate

4-(3-(Piperazin-1-yl)propoxy)benzoic acid

4-(3-Hydrazineylpropyl)pyridine hydrochloride

4-(4-(Pyrrolidin-1-ylmethyl)phenyl)piperidine dihydrochloride

4-(4-Methoxyphenyl)-1-(piperidin-4-yl)-1H-imidazol-2-ol hydrate

4-(4,4-Diethoxybutyl)pyridine

4-(5-Chloro-6-fluoro-3-pyridinyl)benzaldehyde

[4-(Allyloxy)-2-chlorophenyl]methanamine

4-(Boc-amino)benzylamine

4-(Isobutylamino)butanenitrile

[4-(tert-Butoxycarbonyl)-1,4-diazepan-1-yl]acetic acid

4-Amino-3-ethyl-1H-pyrazole-5-carboxamide

4-Benzyl-5-methyl-1H-imidazol-2-amine

4-Bromo-1-methyl-1H-imidazole-5-carboxaldehyde

4-溴-1-甲基-1H-咪唑-5-甲醛

4-Chloro-1H-pyrazole-3-carboxylic acid