4-(2,6-Difluorobenzyl)-5,6,7,8-tetrahydropyrido[4,3-d]pyrimidine

4-(3-Chlorophenyl)-4-hydroxycyclohexanone

4-(4′-Hydroxyphenylazo)benzoic acid

4-(4-Hydrazineylphenyl)-4H-1,2,4-triazole hydrochloride

[4-(4-Pyridinyl)-1,3-thiazol-2-yl]acetic acid

4-(5-Bromo-1H-indol-1-yl)butan-1-ol

4-(6-Chloro-2-pyridinyl)-2-methoxy-5-(3-methyl-5-isoxazolyl)pyrimidine

4-(Boc-amino)-2-chloropyridine-3-carboxylic acid

4-(Dimethoxymethyl)cyclohexanone

[4-(tert-Butoxycarbonyl)-1,4-diazepan-1-yl](3-methoxyphenyl)acetic acid

4-Amino-1-(3-methyl-2-butenyl)-2(1H)-pyrimidinone

4-Benzyl-1,4-diazepane-1-carboximidamide dihydrochloride

4-Bromo-1-(bromomethyl)-2-ethylbenzene

4-Bromophenyl 1,2,3-thiadiazol-5-yl sulfide

4-Chloro-2-methoxybenzoyl chloride