A cooperative catalytic system involving a Pd/XPhos complex and inexpensive 5-norbornene-2-carbonitrile that enables the use of alkyl tosylates as alkylating reagents in the Catellani reaction has been developed. This mild, scalable protocol is compatible with a range of readily available functionalized aryl iodides and alkyl tosylates, as well as terminating olefins (45 examples, up to 97% yield)
Disclosed herein are cannabinoid receptor ligands of formula (I)
wherein A
1
, A
5
, R
x
, X
4
, and z are as defined in the specification. Compositions comprising such compounds, and methods for treating conditions and disorders using such compounds and compositions are also disclosed.
the gold‐catalyzed allene cycloisomerizations under aqueous micellar conditions is described. The polymers were prepared by ring‐opening cationic polymerization based on poly(2‐methyl‐2‐oxazoline) as hydrophilic segment and different hydrocarbon‐ or fluorocarbon‐based hydrophobic segments. The catalytic activity in the gold‐catalyzed allene cyclization is strongly dependent on the type of gold precursor
[EN] SUBSTITUTED HETEROCYCLIC DERIVATIVES AS GPR AGONISTS AND USES THEREOF<br/>[FR] DÉRIVÉS HÉTÉROCYCLIQUES SUBSTITUÉS EN TANT QU'AGONISTES DE GPR ET LEURS UTILISATIONS
申请人:PIRAMAL ENTPR LTD
公开号:WO2015028960A1
公开(公告)日:2015-03-05
The present invention generally relates to substituted heterocyclic derivatives (the compounds of Formula (I)), processes for their preparation, pharmaceutical compositions containing said compounds, their use as G-protein coupled receptor (GPR) agonists, particularly as GPR40 agonists and methods of using these compounds in the treatment of GPR40 mediated diseases or conditions such as Type 2 diabetes, obesity, dyslipidemia, hyperlipidemia, hypercholesterolemia, and hypertriglyceridemia.
Design, Synthesis, and Biological Investigation of Epothilone B Analogues Featuring Lactone, Lactam, and Carbocyclic Macrocycles, Epoxide, Aziridine, and 1,1-Difluorocyclopropane and Other Fluorine Residues
作者:K. C. Nicolaou、Yogesh G. Shelke、Balu D. Dherange、Aaron Kempema、Baiwei Lin、Christine Gu、Joseph Sandoval、Mikhail Hammond、Monette Aujay、Julia Gavrilyuk
DOI:10.1021/acs.joc.0c00123
日期:2020.3.6
with an NCO-alkyl residue (imide or carbamate). Biologicalevaluation of these analogues revealed a number of exceptionally potent epothilone B analogues, demonstrating the potency enhancing effects of the fluorine residues and the aziridinyl moiety within the structure of the epothilone molecule and providing new and useful structure-activity relationships within this class of compounds.