Organic sulfur mechanisms. 36. Cyclopropanesulfonyl chloride: its mechanisms of hydrolysis and reactions with tertiary amines in organic media
摘要:
Cyclopropanesulfonyl chloride (1) has been synthesized and its reactions examined to see if the three-membered ring leads to unusual reactions in either 1 or the corresponding sulfene, cyclopropanethione S,S-dioxide (2). pH-rate profiles, primary kinetic isotope effects (KIE's), and pH-product ratio experiments are in full agreement with mechanisms of hydrolysis of 1 like those of a simple alkanesulfonyl chlorides (J. Am. Chem. Soc. 1992,114,1743-1749), specifically, (a) below pH 7.2 by S(N)2-S reaction with water and (b) above pH 7.3, elimination by hydroxide to form the sulfene (2) which is trapped by (i) water below pH 12.0 and (ii) hydroxide above pH 12.0. The products of the reaction of cyclopropanesulfonyl-1-d chloride (9) with triethylamine and 2-propanol in dichloromethane indicate that most of the reaction goes via 2; the analogous reaction with trimethylamine apparently proceeds by a direct formation of the sulfonylammonium chloride (14) which then yields the alpha-deuterated N,N-dimethyl sulfonamide (12, R = Me). The evident sulfene formation processes in the reaction of triethylamine with ethanesulfonyl, 2-propanesulfonyl, and cyclopropanesulfonyl chlorides show very low primary KIE's (<1.5), pointing to highly product-like transition states. Reaction of 1 with an enamine (1-pyrrolidino-2-methylpropene, 20) in the presence of a base in either water or dichloromethane gave cyclopropanesulfonpyrrolidide (23) and an aldehyde adduct (24), but no four-membered cycloadduct (21).
The invention provides a compound of Formula (I)
pharmaceutically acceptable salts, pro-drugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variable are defined herein. The compounds of the invention are useful for treating immunological and oncological conditions.
[EN] SUBSTITUTED TRIAZINONES AS THYROID HORMONE RECEPTOR AGONISTS<br/>[FR] TRIAZINONES SUBSTITUÉES EN TANT QU'AGONISTES DU RÉCEPTEUR DE L'HORMONE THYROÏDIENNE
申请人:ECCOGENE SHANGHAI CO LTD
公开号:WO2021143706A1
公开(公告)日:2021-07-22
The application relates to a compound of Formula (I') or (I), or a pharmaceutically acceptable salt, hydrate, solvate, prodrug, stereoisomer, or tautomer thereof, which modulates the activity of thyroid hormone receptors, a pharmaceutical composition comprising a compound of Formula (I') or (I), and a method of treating or preventing a disease or disorder regulated by thyroid hormone.
The invention provides a compound of Formula (I)
pharmaceutically acceptable salts, pro-drugs, biologically active metabolites, stereoisomers and isomers thereof wherein the variable are defined herein. The compounds of the invention are useful for treating immunological and oncological conditions.
[EN] The present invention relates to a compotind represented by the following formula I or a pharmaceutically acceptable salt thereof; wherein R1, R2, and y are defined herein. The present invention further relates to compositions that include the compound of the present invention as well as a method of treating a patient from endometreosis or uterine fibroids. [FR] La présente invention concerne un composé représenté par la formule I suivante ou un sel pharmaceutiquement compatible de ce dernier. Dans la formule I, R1, R2 et y ont la définition mentionnée. La présente invention concerne également des compositions contenant le composé de la présente invention ainsi qu'un procédé de traitement d'un patient souffrant d'endométriose ou de fibromes utérins.