The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 29, 2023
Filed:
Sep. 07, 2021
Applicant:
Sci Pharmtech Inc., Taoyuan, TW;
Inventors:
Chen-Yi Kao, Taoyuan, TW;
Feng-Hsu Li, Taoyuan, TW;
Assignee:
SCI PHARMTECH INC., Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 213/10 (2006.01); C07C 213/02 (2006.01); C07D 301/03 (2006.01);
U.S. Cl.
CPC ...
C07C 213/10 (2013.01); C07C 213/02 (2013.01); C07D 301/03 (2013.01); C07C 2601/14 (2017.05);
Abstract
Provided is a method of purifying a terpenoid amino alcohol derivative, including providing a crude terpenoid amino alcohol derivative; performing an acid/base crystallization process of the crude terpenoid amino alcohol derivative to obtain an organic salt; and reacting the organic salt with NaOH and toluene to obtain a purified terpenoid amino alcohol derivative. Also provided is a method of preparing p-mentha-2,8-diene-1-ol from the purified terpenoid amino alcohol derivative.