((5-Nitro-2-thiazolyl)thio) and ((5-nitro-2-thiazolyl)sulfinyl)p

((5-Nitro-2-thiazolyl)thio)polyhalogenated pyridines

(-)-Apovincaminol lauric acid ester and cerebral vasodilatory co

(.+-.)3-Deazaaristeromycin and uses

(1,4)Dithiino(2,3-b)(1,2,5)-thiadiazole(3,4-e)pyrazine-6,7-dicar

(1,4)Dithiino(2,3-b)(1,3)thiazole-(4,5-e)pyrazine-6,7-dicarbonit

(1-Hydroxy-2-amino-alkyl)-substituted benzoxazinones and benzoxa

(1-Oxo-2-aryl or thienyl-2-substituted-5-indanyloxy (or thio) al

(1H,3H,5H)-(1)-Benzopyrano-(2,3-d)-pyrimidine-4-one-2-thiones an

(2-Imidazolin-2-ylamino) substituted -quinoxalines and -quinazol

(3,4';4,5)-Pyrido (3,2-g)-furo coumarins or (3,4-h) pyrido psora

(3-Alkylamino-2-hydroxypropoxy)-1-hydrazinophthalazines

(3-Amino-5-substituted-6-fluoropyrazinoyl or pyrazamido)-guanidi

(3-Aralkylamino-2-or-propoxy)heterocyclic compounds

(3-Piperazinocarbonylimino-quanidino)-isoxazoles

(4-Phenyl-piperazino alkyl)-3-benzoyl-benzene alkanoates

(6a.alpha.,10a.alpha.,11a.alpha.)-2-(2-Pyridinyl)-1,3,4,6,6a,7,8

(6R,7R)-7-[(Z)-2-(2-Aminothiazol-4-yl)-2-(2-carboxyprop-2-oxyimi

(Aminoalkoxy-aryl)-substituted isoquinolinones and naphthydrinon

(Erolinyl)-N,N-diethylurea derivatives, and their preparation an