Pregnanes and androstanes are described which essentially possess a 3.alpha.-hydroxy group, a 5.alpha.-hydrogen atom or a 4.5- or 5,6-double bond, a 17.alpha.-hydrogen atom and an 11.beta.-aminoester group. Other optional substituents or double bonds may be present. The compounds have anaesthetic activity.
Anaesthetic composition containing a steroid of the 5.alpha.-pregnane
申请人:Glaxo Laboratories Limited
公开号:US03952031A1
公开(公告)日:1976-04-20
This invention relates to steroids of the pregnane and 19-norpregnane series having anaesthetic properties and compositions containing them. More particularly the present invention relates to such steroids having a variety of substituents in the 2.beta.-position, a 3.alpha.-hydroxy group and a 5.alpha.-hydrogen atom and esters and 20-ketals thereof. At the 11-position of such steroids is preferably either two hydrogen atoms or an oxo group. The compounds according to the invention may conveniently be prepared by reaction of an appropriate 2.alpha.,3.alpha.-epoxy-pregnane or 19-norpregnane with a reagent which introduces the desired 2.beta.-substituent and various modifications of the compound produced are described to produce compounds within the scope of the invention. The present invention provides compositions containing certain steroids of the pregnane and 19-norpregnane series and such compositions generally may be administered intravenously to induce anaesthesia, the invention providing methods of inducing anaesthesia.
Synthese von 3?, 21-Diacetoxy-17-hydroxy-5?-pregnandion-(11,20). Bestandteile der Nebennierenrinde und verwandte Stoffe, 99. Mitteilung
作者:W. Nagata、Ch. Tamm、T. Reichstein
DOI:10.1002/hlca.19590420504
日期:——
Die Synthesevon 3α, 21-Diacetoxy-17α-hydroxy-5α-pregnandion-(ll, 20) (XVII, Di-O-acetyl-Derivat der «Subst. 11-Dehydro-C»), ausgehend von 3β-Hydroxy-5α-pregnandion-(11, 20) mit Hilfe der von GALLAGHER u. Mitarb.15) sowie KRITCHEVSKY & GALLACHER21) entwickelten Methodik, wird beschrieben.