[EN] OXYSTEROLS AND METHODS OF USE THEREOF<br/>[FR] OXYSTÉROLS ET LEURS PROCÉDÉS D'UTILISATION
申请人:SAGE THERAPEUTICS INC
公开号:WO2017007832A1
公开(公告)日:2017-01-12
Compounds are provided according to Formula (I) and pharmaceutically acceptable salts thereof, and pharmaceutical compositions thereof; wherein R1, R2, R3, R4, R5, and R8 are as defined herein. Compounds of the present invention are contemplated useful for the prevention and treatment of a variety of conditions.
The chiral beta-amino alcohols-catalyzed addition of diisopropylzinc to steroidal 24-aldehydes successfully provided 24(R)-hydroxycholesterols in good yields with high diastereoselectivities, which are synthetic intermediates of 1 alpha,24(R)-dihydroxyvitamin D-3 (1). alpha,beta-Unsaturated steroidal aldehydes were found to give the corresponding isopropylated adducts in much higher yields (up to 91%) than those of saturated steroidal aldehydes.