Studies of steroids. Part CCL. Chemical conversion of corticosteroids to 3.ALPHA.,5.ALPHA.-tetrahydro derivatives. Synthesis of allotetrahydrocortisol glucuronides and allotetrahydrocortisone glucuronides.
Potential Corticoid Metabolites: Chemical Synthesis of 3- and 21-Monosulfates and Their Double-Conjugates of Tetrahydrocorticosteroids in the 5.ALPHA.- and 5.BETA.-Series
Here, we describe the chemical synthesis of the complete sets of 18 novel 3- and 21-monosulfates and their double-conjugated form of tetrahydrocortisol (THF), tetrahydro-11-deoxycortisol (THS), and tetrahydrocortisone (THE) in the 5alpha- and 5beta-series. The principal reactions involved are: (1) selective protection of a specific hydroxy group in substrates; (2) catalytic hydrogenation at C-5 of
Neuroactive steroids, compositions, and uses thereof
申请人:Sage Therapeutics, Inc.
公开号:US11046728B2
公开(公告)日:2021-06-29
Described herein are neuroactive steroids of the Formula (I):
or a pharmaceutically acceptable salt thereof; wherein R1a and R1b are as defined herein. Such compounds are envisioned, in certain embodiments, to behave as GABA modulators. The present invention also provides pharmaceutical compositions comprising a compound of the present invention and methods of use and treatment, e.g., such for inducing sedation and/or anesthesia.
NEUROACTIVE STEROIDS, COMPOSITIONS, AND USES THEREOF
申请人:Sage Therapeutics, Inc.
公开号:EP3021852B1
公开(公告)日:2021-01-27
[EN] NEUROACTIVE STEROIDS, COMPOSITIONS, AND USES THEREOF<br/>[FR] STÉROÏDES NEUROACTIFS, COMPOSITIONS, ET LEURS UTILISATIONS
申请人:SAGE THERAPEUTICS INC
公开号:WO2013188792A3
公开(公告)日:2014-02-20
Studies of steroids. Part CCL. Chemical conversion of corticosteroids to 3.ALPHA.,5.ALPHA.-tetrahydro derivatives. Synthesis of allotetrahydrocortisol glucuronides and allotetrahydrocortisone glucuronides.
The synthesis of the 3- and 21-glucuronides of allotetrahydrocortisol (allo-THF) and allotetrahydrocortisone (allo-THE) is described. 5α-Dihydrocortisol (5) was prepared by selective hydrogenation of 21-acetoxy-3, 11β, 17α-trihydroxy-3, 5-pregnadien-20-one 3-ethyl ether (3), followed by acid hydrolysis and saponification. When 5α-dihydrocortisol 21-tetrahydropyranyl ether (6) was treated with potassium tri-sec-butylborohydride in tetrahydrofuran under mild conditions, regioselective and stereoselective reduction at C-3 took place to give allo-THF 21-tetrahydrophyranyl ether (7). This compound was converted into the 3- and 21-monoacetates of allo-THF and allo-THE, key intermediates. Introduction of the glucuronyl residue at C-3 or C-21 was carried out by means of the Koenigs-Knorr reaction. Prior to saponification yielding the 3-glucuronides (20, 23), the alkali-sensitive ketol side chain at C-17 was protected as 20-semicarbazones.