[EN] IMIDAZO [1, 2 -A] PYRIDINE AND PYRAZOLO [1, 5 -A] PYRIDINE DERIVATIVES AS TRPV1 ANTAGONISTS [FR] DÉRIVÉS D'IMIDAZO[1,2-A]PYRIDINE ET DE PYRAZOLO[1,5-A]PYRIDINE EN TANT QU'ANTAGONISTES DU TRPV1
[EN] IMIDAZO [1, 2 -A] PYRIDINE AND PYRAZOLO [1, 5 -A] PYRIDINE DERIVATIVES AS TRPV1 ANTAGONISTS [FR] DÉRIVÉS D'IMIDAZO[1,2-A]PYRIDINE ET DE PYRAZOLO[1,5-A]PYRIDINE EN TANT QU'ANTAGONISTES DU TRPV1
Heteroaryl imidazolone derivatives as jak inhibitors
申请人:Almirall, S.A.
公开号:EP2397482A1
公开(公告)日:2011-12-21
New heteroaryl imidazolone derivatives having the chemical structure of formula (I) are disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of Janus Kinases (JAK).
[EN] HETEROARYL IMIDAZOLONE DERIVATIVES AS JAK INHIBITORS<br/>[FR] DÉRIVÉS D'HÉTÉROARYLE IMIDAZOLONE EN TANT QU'INHIBITEURS DE JAK
申请人:ALMIRALL SA
公开号:WO2011157397A1
公开(公告)日:2011-12-22
New heteroaryl imidazolone derivatives having the chemical structure of formula (I) disclosed; as well as process for their preparation, pharmaceutical compositions comprising them and their use in therapy as inhibitors of Janus Kinases (JAK).
Divergent and Regioselective Synthesis of Pyrazolo[1,5-<i>a</i>]pyridines and Imidazo[1,5-<i>a</i>]pyridines
作者:Katrina M. Mennie、Michael H. Reutershan、Catherine White、Bruce Adams、Bridget Becker、James Deng、Jason D. Katz、Elisabeth LaBlue、Kaila Margrey、Josep Saurí
DOI:10.1021/acs.orglett.1c01431
日期:2021.6.18
ubiquitous in pharmaceuticals and drug-like compounds; however, regioselective synthesis has proved challenging. Herein we report our efforts to develop a regioselective method for the synthesis of pyrazolo[1,5-a]pyridines and the serendipitous discovery of a protocol for the regioselective formation of imidazo[1,5-a]pyridines. Together, these transformations allow for the rapid and selective formation
含氮杂环在药物和类药物化合物中无处不在;然而,区域选择性合成已被证明具有挑战性。在此,我们报告了我们为开发合成吡唑并[1,5- a ]吡啶的区域选择性方法所做的努力,并偶然发现了一种用于区域选择性形成咪唑并[1,5- a ]吡啶的方案。总之,这些转化允许从一个共同的中间体快速和选择性地形成两个重要的杂环基序。
Palladium-catalyzed oxidative C–H/C–H cross-coupling of pyrazolo[1,5-<i>a</i>]azines with five-membered heteroarenes
作者:Thanh V. Q. Nguyen、Lorenzo Poli、Aaron T. Garrison
DOI:10.1039/d1cc06337e
日期:——
as the oxidant enabled the direct regioselectiveoxidativeC–H/C–H cross-coupling of pyrazolo[1,5-a]pyrimidines or pyrazolo[1,5-a]pyridines with various five-membered heteroarenes without the need of pre-activation and/or directing groups. Successful coupling partners include thiophenes, benzothiophenes, thiazoles, furans, oxazoles, indoles and imidazo[1,2-a]pyridines.
使用 Pd(OAc) 2作为催化剂,AgOAc 作为氧化剂,使得吡唑并[1,5- a ]嘧啶或吡唑并[1,5 - a ]的直接区域选择性氧化C-H/C-H交叉偶联成为可能吡啶与各种五元杂芳烃,无需预活化和/或导向基团。成功的偶联伙伴包括噻吩、苯并噻吩、噻唑、呋喃、恶唑、吲哚和咪唑并[1,2- a ]吡啶。