PROCESS FOR ISOLATING ENANTIOMERS OF RACEMIC CETAMINE

Title:

PROCESS FOR ISOLATING ENANTIOMERS OF RACEMIC CETAMINE

Document Type and Number:

WIPO Patent Application WO2001098265

Kind Code:

B1

Abstract:

The present invention describes a new process for obtainment of the cetamine enantiomers, form the racemic cetamine resolution with the aid of an agent of chiral resolution, which provides the selective crystallization of its enantiomers. The resolution agent is employed in special concentration conditions, which provides stability, reproducibility and high enantiomeric purity to the precipitated diasteromer salt, making feasible the industrial production of the S-cetamine and its pharmaceutically acceptable salts.

Inventors:

TORRES RUSSO VALTER FREIRE (BR)
MANNOCHIO DE SOUZA RUSSO ELISA (BR)

Application Number:

PCT/BR2001/000075

Publication Date:

October 24, 2002

Filing Date:

June 18, 2001

Export Citation:

Click for automatic bibliography generation Help

Assignee:

CRISTALIA PRODUTOS QUIMICOS E (BR)
TORRES RUSSO VALTER FREIRE (BR)
MANNOCHIO DE SOUZA RUSSO ELISA (BR)

International Classes:

A61P23/00; A61P25/04; C07B57/00; C07C221/00; C07C225/12; (IPC1-7): C07B57/00

Download PDF:

View/Download PDF PDF Help

Previous Patent: METHOD FOR PRODUCING ALIPHATIC SULPHONIC ACID CHLORIDES FROM SULPHONIC ACIDS

Next Patent: N-AND O-SUBSTITUTED 4-[2-(DIPHENYLMETHOXY)-ETHYL]-1-[(PHENYL)METHYL]PIPERIDINE ANALOGS AND METHODS O...