Abstract: The present invention relates to solriamfetol or novel salts thereof and its process for preparation. More particularly the present invention relates to solriamfetol dibenzoyl-D-tartaric acid salt or solriamfetol di-p-toluoyl-D-tartaric acid salt and their process for preparation. Further the present invention relates to use of solriamfetol dibenzoyl-D-tartaric acid salt or solriamfetol di-p-toluoyl-D-tartaric acid salt for the preparation of solriamfetol hydrochloride.
Abstract: The present invention provides a process for preparation of deoxycholic acid or salt thereof; the process comprises the steps of reacting the compound of formula II to obtain a compound of formula III; the compound of formula III is converted to a compound of formula IV and the compound of formula IV is converted to deoxycholic acid. The present invention also provides a process for the purification of deoxycholic acid or salt thereof.
Type:
Grant
Filed:
May 21, 2018
Date of Patent:
December 8, 2020
Assignee:
GLENMARK LIFE SCIENCES LIMITED
Inventors:
Ranjeet Nair, Shekhar Bhaskar Bhirud, Nandkumar Gaikwad, Sharad R. Gore, Rajendra C. Jagdhane, Sandip Gadge, Sukumar Sinha
Abstract: The present invention relates to a process for the preparation of amorphous dapagliflozin. The present invention relates to 2,3-butanediol solvate of dapagliflozin and process for its preparation.
Abstract: The present invention relates to a process for preparation of apremilast. The present invention relates to p-xylene solvate of apremilast and process for its preparation.
Abstract: The present invention relates to process for preparation of tavaborole with high purity. The present invention relates to method of assessing the purity of tavaborole.