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:
Jun. 05, 2018
Filed:
Aug. 31, 2017
Unity Biotechnology, Inc., Brisbane, CA (US);
Thomas W. von Geldern, Richmond, IL (US);
Bradley Backes, San Francisco, CA (US);
Bing Chen, Shanghai, CN;
UNITY BIOTECHNOLOGY, INC., Brisbane, CA (US);
Abstract
This invention provides a method for enantioselective synthesis of cis-imidazolines and related structures through chiral resolution. A chiral acid is used to separate enantiomeric precursors of the cis-imidazolines from a racemic mixture by selective crystallization. Both enantiomers can be cyclized into the desired cis-imidazoline by complementary pathways. Compounds can be synthesized according to the invention with an enantiomeric excess as high as 99%. Cis-imidazolines such as Nutlin-3a prepared according to this invention may be used for treating cancer, killing senescent cells, or treating senescence-associated conditions.