Labaz

Sanofi

Stephan Gero

Andre Cier

Alain Olesker

Jean Leboul

Jean-Claude Barriere

Jeanine Cleophax

Daniel Mercier

Prostanoic acid derivatives represented by the general formula: ##STR1## in which X represents hydrogen or hydroxy, X.sub.1 represents hydrogen or X and X.sub.1, when they are taken together with the carbon atom to which they are attached, represent a carbonyl group and Z represents hydrogen or hydroxy and pharmaceutically acceptable alkali metal salts thereof. They can be used as bronchodilators and/or inhibitors of blood-platelet aggregation.

Hetero-prostaglandin derivatives and processes for preparing them

Novel aminoglycoside-aminocyclitol derivatives corresponding to the general formula: ##STR1## wherein R.sub.1 and R.sub.2, which are different, represent hydrogen or CH.sub.2 NH.sub.2 and R is selected from the group consisting of: ##STR2## wherein R.sub.3 represents NH.sub.2 or OH and R.sub.4 represents ##STR3## wherein R.sub.5 represents hydrogen or methyl and the pharmaceutically acceptable acid addition salts thereof. They are useful as antibiotics.

Aminoglycoside-aminocyclitol derivatives and method of use

Cyclohexanediol derivatives of the general formula: ##STR1## wherein R.sub.1 and R.sub.2, which are identical, each represent a N.sub.3 or NH.sub.2 group, and the acid addition salts of the derivative containing two NH.sub.2 groups. These compounds are useful as intermediate products for the preparation, for example, of synthetic antibiotics.

Alicyclic compounds

Cyclohexanediol derivatives of the general formula: ##SPC1## Wherein R.sub.1 and R.sub.2, which are identical, each represent a N.sub.3 or NH.sub.2 group, and the acid addition salts of the derivative containing two NH.sub.2 groups. These compounds are useful as intermediate products for the preparation, for example, of synthetic antibiotics.

Growing community of inventors

Ablon, France

Stephan Gero