6-Acyl derivatives of aminopenicillanic acid

6-Acylamido-2,2-dimethyl-3-(pyrimidin-4,6-dione-2-yl)-penams and

6-Acylamido-2,2-dimethyl-3-(pyrimidin-4,6-dione-2-yl)penams

6-Acylamino-penam-3-carboxylic acids

6-Alkoxy prostaglandin I.sub.1 compounds

6-Alkoxy-4.alpha.-hydroxy-2.beta.-tetrahydropyranacetic acid .ga

6-Alkoxymethyl-1,2,3,5-tetrahydroimidazo[2,1-b]quinazolin-2-ones

6-Alpha-halopenicillanic acid 1,1-dioxides

6-Amino penam derivatives

6-Amino-1-hydroxyhexylidene diphosphonic acid, salts and a proce

6-Amino-2,2-dimethyl-3-(5-tetrazolyl)penam process and intermedi

6-Amino-2,2-dimethyl-3-(5-tetrazolyl)penam process and intermedi

6-Amino-2,2-dimethyl-3-cyanopenams

6-Amino-4-(substituted piperidino)-1,2-dihydro-1-hydroxy-2-imino

6-Amino-5.beta.,19-cycloandrostane derivatives

6-Amino-6-arylthio penicillanic acids and derivatives thereof

6-Amino-isoproterenol

6-Aminomethylated 3-oxygenated cholest-5-enes

6-Aminopenicillanic acid derivatives

6-Aminopenicillanic acid sulfoxide silyl esters