The Cinchona alkaloids: a silicon-directed synthesis of some advanced intermediates
摘要:
N-Benzylmeroquinene aldehyde (5b) was prepared in 10 steps and 21% overall yield from benzylamine. The key transformations involved a stereoselective Lewis acid catalyzed Diels-Alder reaction to produce bicyclic amide 18, which in turn underwent a regioselective Baeyer-Villager oxidation to produce lactone 20. Acid-catalyzed ring opening with concomitant Peterson olefination afforded the meroquinene skeleton, which was converted in high yield to meroquinene aldehyde via a reduction/oxidation sequence. Treatment of this aldehyde with anions derived from 4-methylquinoline smoothly generated alcohols 23a,b, which on acetylation yielded the advanced Cinchona alkaloid intermediates 24a,b.
[EN] COMPOUNDS HAVING MUSCARINIC RECEPTOR ANTAGONIST AND BETA2 ADRENERGIC RECEPTOR AGONIST ACTIVITY [FR] COMPOSÉS AYANT UNE ACTIVITÉ D'ANTAGONISTE DES RÉCEPTEURS MUSCARINIQUES ET D'AGONISTE DES RÉCEPTEUR ADRÉNERGIQUES BÊTA 2
COMPOUNDS HAVING MUSCARINIC RECEPTOR ANTAGONIST AND BETA2 ADRENERGIC RECEPTOR AGONIST ACTIVITY
申请人:CHIESI FARMACEUTICI S.p.A.
公开号:US20160235734A1
公开(公告)日:2016-08-18
Compounds of formula I, defined herein, act both as muscarinic receptor antagonists and beta2 adrenergic receptor agonists and are useful for treating broncho-obstructive and inflammatory diseases.
Copper-Catalyzed Diamination of Unactivated Alkenes With Electron-Rich Amino Sources
作者:Yang Li、Arshad Ali、Junchao Dong、Yu Zhang、Lili Shi、Qun Liu、Junkai Fu
DOI:10.1021/acs.orglett.1c01313
日期:2021.5.21
The catalytic intermoleculardiamination of unactivated alkenes with electron-rich amino sources is a challenge. Herein, by employing a directing-group strategy, a copper-catalyzeddiamination of unactivated alkenes was realized. Symmetrical diamines were efficiently produced in a highly diastereoselective manner with readily available dialkylamines as amino sources, while a one-pot and two-step operation
[EN] COMPOUNDS HAVING MUSCARINIC RECEPTOR ANTAGONIST AND BETA2 ADRENERGIC RECEPTOR AGONIST ACTIVITY<br/>[FR] COMPOSÉS AYANT UNE ACTIVITÉ D'ANTAGONISTE DES RÉCEPTEURS MUSCARINIQUES ET D'AGONISTE DES RÉCEPTEUR ADRÉNERGIQUES BÊTA 2
申请人:CHIESI FARM SPA
公开号:WO2016193241A1
公开(公告)日:2016-12-08
The present invention relates to compounds acting both as muscarinic receptor antagonists and beta2 adrenergic receptor agonists, to processes for their preparation, to compositions comprising them, to therapeutic uses and combinations with other pharmaceutical active ingredients.
Compounds having muscarinic receptor antagonist and beta2 adrenergic receptor agonist activity
申请人:Chiesi Farmaceutici S.p.A.
公开号:US08980913B2
公开(公告)日:2015-03-17
Compounds of formula (I) defined herein act both as muscarinic receptor antagonists and beta2 adrenergic receptor agonists and are useful for the prevention and/or treatment of broncho-obstructive or inflammatory diseases.
Compounds having muscarinic receptor antagonist and BETA2 adrenergic receptor agonist activity
申请人:CHIESI FARMACEUTICI S.p.A.
公开号:US10004728B2
公开(公告)日:2018-06-26
Compounds of formula I, defined herein, act both as muscarinic receptor antagonists and beta2 adrenergic receptor agonists and are useful for treating broncho-obstructive and inflammatory diseases.
本文定义的式 I 化合物既是毒蕈碱受体拮抗剂,又是β2 肾上腺素能受体激动剂,可用于治疗支气管阻塞性疾病和炎症性疾病。