Total synthesis of Epothilone E and related side-chain modified analogues via a stille coupling based strategy1This paper is dedicated with admiration and respect to the memory of Sir Derek H. R. Barton.1
A Stille couplingstrategy has been utilized to complete a totalsynthesis of epothilone E from vinyl iodide 7 and thiazole-stannane 8h. The central core fragment 7 and its trans-isomer 11 were prepared from triene 15 using ring-closing metathesis (RCM), and were subsequently coupled to a variety of alternative stannanes to provide a library of epothilone analogues 18a-o and 19a-o. The Stille coupling
Compounds of formula
as well as pharmaceutically acceptable salts and esters thereof, wherein R
1
to R
3
have the significance given in the application and which can be used in the form of pharmaceutical compositions.
Compounds of formula
as well as pharmaceutically acceptable salts and esters thereof, wherein R1 to R3 have the significance given in the application and which can be used in the form of pharmaceutical compositions.
[EN] 3-HETEROARYL PYRROLIDINE AND PIPERIDINE OREXIN RECEPTOR AGONISTS<br/>[FR] AGONISTES 3-HÉTÉROARYL PYRROLIDINE ET PIPÉRIDINE DES RÉCEPTEURS DE L'OREXINE
申请人:MERCK SHARP & DOHME
公开号:WO2022119888A1
公开(公告)日:2022-06-09
The present invention is directed to 3-heteroaryl pyrrolidine and piperidine compounds which are agonists of orexin receptors. The present invention is also directed to uses of the compounds described herein in the potential treatment or prevention of neurological and psychiatric disorders and diseases in which orexin receptors are involved. The present invention is also directed to compositions comprising these compounds. The present invention is also directed to uses of these compositions in the potential prevention or treatment of such diseases in which orexin receptors are involved.
[EN] PREPARATION METHOD FOR BICYCLIC COMPOUND AND APPLICATION AS ANTIFUNGAL AGENT<br/>[FR] PROCÉDÉ DE PRÉPARATION D'UN COMPOSÉ BICYCLIQUE ET APPLICATION EN TANT QU'AGENT ANTIFONGIQUE<br/>[ZH] 双环类化合物的制备方法及作为抗菌剂的应用