The present invention provides methods for preparing TLR-4 receptor agonist E6020:
and stereoisomers thereof, which compounds are useful as an immunological adjuvants when co-administered with antigens such as vaccines for bacterial and viral diseases. Also provided are synthetic intermediates.
REAGENTS AND METHODS FOR THE BETA-KETO AMIDE SYNTHESIS OF A SYNTHETIC PRECURSOR TO IMMUNOLOGICAL ADJUVANT E6020
申请人:DeCosta Bruce
公开号:US20090187038A1
公开(公告)日:2009-07-23
This invention relates to the synthesis for a precursor of E6020, compound 26, via a β-keto amide alcohol intermediate, compound 22. The synthesis reacts compound 22 with compound 25 and the resultant intermediate is oxidized to produce compound 26, the precursor to E6020. Compounds 22 and 25, and their crystalline forms, represent separate embodiments of the invention. The invention also relates to compounds of formulas (3) and (4) and processes for their preparation.
The β-keto amide alcohol intermediate compound 22 is a compound of formula (3). Compound 25 is a compound of formula (4).
COMPOUNDS FOR PREPARING IMMUNOLOGICAL ADJUVANT
申请人:FANG Francis G.
公开号:US20100197951A1
公开(公告)日:2010-08-05
The present invention provides methods for preparing TLR-4 receptor agonist E6020:
and stereoisomers thereof, which compounds are useful as an immunological adjuvants when co-administered with antigens such as vaccines for bacterial and viral diseases. Also provided are synthetic intermediates useful for implementing the inventive methods.