A Scaleable Combined Resolution and Improved Dosage Form for Etodolac with Recycle of the Off-Isomer

Autor: Woods, M., Dyer, U. C., Andrews, J. F., Morfitt, C. N., Valentine, R., Sanderson, J.
Zdroj: Organic Process Research & Development; September 2000, Vol. 4 Issue: 5 p418-426, 9p
Abstrakt: An efficient resolution process using N-methyl glucamine (meglumine) which directly provides (S)-etodolac as the meglumine salt is described. This salt is also a dosage form with improved absorption characteristics. The off-isomer is efficiently racemised via the ester, prepared by mild esterification, followed by hydrolysis affording rac-etodolac suitable for recycling.
Databáze: Supplemental Index