Abstract: A novel dentifrice composition is provided for prevention or treatment of carcinoma of the oral cavity, caries and periodontal diseases of the oral cavity. The dentifrice composition contains a partially water-soluble calcium salt, a medicinal composition useful in the treatment of human neoplastic disease, and a hydrophilic or hydrophobic liquid vehicle. A preferred dentifrice composition is a toothpaste comprising gypsum, 3-N-phenylacetylamino-2,6-dione, gypsum, paraffin oil and a mixture of natural flavoring oils. The components of the dentifrice composition act advantageously to allow the composition to remove plaque, tartar, and oral disease-causing bacteria.

Abstract: A novel dentifrice composition is provided for prevention or treatment of carcinoma of the oral cavity, caries and periodontal diseases of the oral cavity. The dentifrice composition contains a partially water-soluble calcium salt, a medicinal composition useful in the treatment of human neoplastic disease, and a hydrophilic or hydrophobic liquid vehicle. A preferred dentifrice composition is a toothpaste comprising gypsum, 3-N-phenylacetylamino-2,6-dione, gypsum, paraffin oil and a mixture of natural flavoring oils. The components of the dentifrice composition act advantageously to allow the composition to remove plaque, tartar, and oral disease-causing bacteria.

Abstract: Process for the production of peptides of general formula R.sup.1 CO--NHR.sup.2 (1), where R.sup.1 CO-is the carboxy component and R.sup.2 NH-is the amino component of a peptide building block. The process is characterized in that a carboxylic acid of general formula R.sup.1 COOH (II), where R.sup.1 CO- has the above meaning, is made to react with a carboxylic acid imide choloride of general formula (III), wherein X is a hydrogen atom, an alkyl group with a maximum of 4 carbon atoms, a fluorine atom, a cholorine atom or a nitro group, Y is a fluorine atom, a chlorine atom or a nitro group and Z has the same meaning as Y or is a hydrogen atom, and the diacylamine of general formula (IV), where R.sup.1, C, Y and Z have the above meaning, is bound to an amine of general formula R.sup.2 NH.sup.2 (V), where R.sup.2 NH- have the above-mentioned meaning.

Abstract: The acetylmethyl ester of hetacyllin and/or its salts of an organic or inorganic acid are described and methods for their synthesis wherein a tertiary amine and chloroacetone are introduced to hetacyllin in an organic solvent or chloroacetone is introduced to hetacyllin in the form of a salt with an alkali metal in an organic solvent, and then from the reaction mixture, the acetylmethyl ester of hetacyllin is isolated in free form and, if desired, a salt of the ester is obtained by reaction with an organic or inorganic acid in an organic solvent.As tertiary amines, trialkylamine, N-methylpiperidine, N-ethylpiperidine or N-methylmorpholine are used; as organic solvents in obtaining the ester, dimethylformamide, dimethylacetamide or dimethylsulfoxide are used. In obtaining salts of the ester the organic solvents used are aliphatic alcohols of a chain length C.sub.2 -C.sub.5 ; ketones, preferably acetone; ethers, such as diethyl, dipropyl, diisopropyl, dibutyl ethers, or their mixtures.

Abstract: The subject of this invention are the desalanyltetaine derivatives of the formula 1, wherein R.sup.1 is a hydroxyl group or an arrangement of the formula 2, wherein R.sup.3 is a hydrogen atom or an alkyl, aryl, aralkyl group and X is an acyl or alkyl group, R.sup.2 is a hydrogen atom or an acyl group, and Z is an oxygen atom, hydroxylamine or hydrazine radical or their alkyl, aryl or aralkyl derivatives.The method of the preparation of the derivatives according to the invention consists in treating the desalanyltetaine derivatives of the formula 1, where R.sup.1 and R.sup.2 have the above mentioned significance, and Z is an oxygen atom with hydroxylamine, hydrazine or their derivatives. A modification of the method consists in treating the desalanyltetaine of the formula 1, where R.sup.2 and Z have the above mentioned significance, and R.sup.1 is a hydroxyl group with the chloroethers.Another modification of the method consists in the fact that the desalanyltetaine derivatives of the formula 1 where R.sup.