4-(Acetylamino)-1,2,5-oxadiazole-3-carboxylic acid

4-(Bromomethyl)-2-methoxybenzonitrile

4-(difluoromethoxy)benzoyl chloride

4-(methylsulfonyl)phenyl sulfofluoridate

4-(甲磺酰)苯磺基氟化物

4-(Piperidin-1-ylmethyl)aniline

4-(Pyrrolidine-1-sulfonyl)-benzenesulfonyl chloride

4-(Trifluoromethyl)thiazole-5-carboxylic acid

4-Amino-1-isopropylpiperidine-4-carboxylic acid

4-Amino-6-chloro-8-methylquinoline

4-Aminobenzo[d]oxazol-2(3H)-one

4-aminotetrahydropyran hydrochloride

4-Bromo-1-(cyclohexylmethyl)-1H-pyrazole

4-bromo-2-(4-hydroxypiperidin-1-yl)thiazole

4-Bromo-3-chloro-1-benzothiophene-2-carboxylic acid

4-Bromo-6-fluoro-1,3-benzothiazol-2-amine