4-(2,1,3-Benzoxadiazol-4-yl)-1,4-dihydropyridazine derivatives,

4-(2-(1H-Imidazol-1-ylmethyl)-1,3-dioxol an-4-yl)methoxypyrazolo

4-(2-Pyridylamino)phenylacetic acid derivatives

4-(3,4-Diaminophenyl)pyridine or salts, and use thereof as cardi

4-(3-(4-Quinolyl)propyl)piperidines, their preparation and their

4-(Phenylalkyl)piperazine-1-carboxamides

4-(Substituted)-.alpha., .alpha.-dimethyl-1-piperazine pentanoic

4-Alkyl- and 4-allyl-mercapto-, -sulfinyl- and -sulfonyl-methyl-

4-Alkyl-2,6-di(secondary or tertiary alkylamino) pyridines, comp

4-Alkyl-2,6-di-(secondary or tertiary alkyl)amino-3-formylpyridi

4-Alkyl-pyrazolo[5,1-b]-quinazolin-9(4H)-ones and anti-allergic

4-Amino-2-piperidino-quinazolines

4-Amino-2-ureido (or -thioureido)-pyrimidine-5-carboxylic acid a

4-Amino-3-p-halophenylbutyric acids and their derivatives used i

4-Amino-3-quinolinecarboxylic acids and esters-antisecretory ant

4-Amino-6, 7-dimethoxy-2-(4-heteroaryl-piperazino) quinazoline _

4-Amino-6,7-dimethoxy-2-(4-heteroaryl-piperazino)quinazoline ant

4-Amino-6,7-dimethoxy-2-(4-heteroaryl-piperazino)quinazoline ant

4-Amino-6,7-dimethoxy-2-piperazinylquinazoline derivatives, thei

4-Amino-6,7-dimethoxyquinazol-2-yl alkylenediamines