Patents by Inventor Jörg-Thorsten Mohr

Jörg-Thorsten Mohr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

PROCESSING FOR PRODUCING OF DROSPIRENONE (6?, 7?, 15?, 16?-DIMETHYLENE-3-OXO-17?-PREGN-4-EN-21, 17-CARBOLACTONE, DRSP) AS WELL AS 7?-(3-HYDOXY-1-PROPLY)-6?, 7?; 15?, 16?-DIMETHYLENE-5?-ANDROSTANE-3?, 5,17?-TRIOL(ZK 92836) AND 6?, 7?; 15?, 16?-DIMETHYLENE-5?-HYDROXY

Patent number: 6933395

Abstract: Process for the production of drospirenone (6?,7?; 15?,16?-dimethylene-3-oxo-17?-pregn-4-ene-21,17-carbolactone, DRSP) (1) and 7?-(3-hydroxy-1-propyl)-6?,7?; 15?,16?-dimethylene-5?-androstane-3?,5,17?-triol (ZK 92836) and 6?,7?; 15?,16?-dimethylene-5?-hydroxy-3-oxo-17?-androstane-21,17-carbolactone (ZK 90965) as intermediate products of the process.

Type: Grant

Filed: August 18, 2000

Date of Patent: August 23, 2005

Assignee: Schering AG

Inventors: Jörg-Thorsten Mohr, Klaus Nickisch

PROCESSING FOR PRODUCING OF DROSPIRENONE (6?, 7?, 15?, 16?-DIMETHYLENE-3-OXO-17?-PREGN-4-EN-21, 17-CARBOLACTONE, DRSP) AS WELL AS 7?-(3-HYDOXY-1-PROPLY)-6?, 7?; 15?, 16?-DIMETHYLENE-5?-ANDROSTANE-3?, 5,17?-TRIOL(ZK 92836) AND 6?, 7?; 15?, 16?-DIMETHYLENE-5?-HYDROXY