(EN) This invention is related to alkyl substituted 2$g(b)-morpholino-androstane derivatives, bonded at their 2$g(b)-position to the nitrogen of a group of formula (I), wherein Ra represents (3-6C) alkyl; Rb represents H or (3-6C) alkyl; and Y is O or S; or a pharmaceutically acceptable salt thereof. These steroids are very potent intravenous anaesthetics. The compounds have fast onset times and ideal 'sleep duration' vs. 'recovery to full coordination' profiles.(FR) L'invention concerne des dérivés 2$g(b)-morpholino-androstane substitués par alkyle, liés en position 2$g(b) à l'azote d'un groupe de la formule (I) dans laquelle Ra désigne alkyle (3-6C); Rb désigne H ou alkyle (3-6C), et Y désigne O ou S; ou un de leurs sels pharmaceutiquement acceptables. Ces stéroïdes constituent des anesthésiques intraveineux extrêmement puissants. Ces composés présentent des délais d'action rapides et des courbes idéales de 'durée de sommeil' / 'récupération jusqu'à parfaite coordination'.
Anesthetic Activity of Novel Water-Soluble 2β-Morpholinyl Steroids and Their Modulatory Effects at GABA<sub>A</sub> Receptors
作者:Alison Anderson、Andrew C. Boyd、Alan Byford、Alexander C. Campbell、David K. Gemmell、Niall M. Hamilton、David R. Hill、Claire Hill-Venning、Jeremy J. Lambert、Maurice S. Maidment、Valerie May、Richard J. Marshall、John A. Peters、David C. Rees、Donald Stevenson、Hardy Sundaram
DOI:10.1021/jm960733n
日期:1997.5.1
administration. Alkylation of the morpholinyl substituent or chlorination at C-21 afforded the novel amino steroids (2 beta,3 alpha,5 alpha)-3-hydroxy-2-(2,2-dimethyl-4-morpholinyl)-pregnane-11,20-dione (19) and (2 beta,3 alpha,5 alpha)-21-chloro-3-hydroxy-2-(4-morpholinyl)pregnan-20-one (37) that were more potent and advantageously produced shorter sleep times than relatedcompounds which were previously