In the search for potent and selective human β3-adrenergicreceptor (AR) agonists as potential drugs for the treatment of obesity and noninsulin-dependent (type II) diabetes, a novel series of phenoxypropanolamine derivatives containing acetanilides were prepared and their biological activities were evaluated at the human β3-, β2-, and β1-ARs. Several of the analogues (21a, 21b, and 27a) exhibited
Compagnon, Paul-Louis; Gasquez, Francoise; Kimny, Tan, Bulletin des Societes Chimiques Belges, 1986, vol. 95, # 1, p. 49 - 56
作者:Compagnon, Paul-Louis、Gasquez, Francoise、Kimny, Tan
DOI:——
日期:——
COMPAGNON, P. -L.;GASQUEZ, F.;KIMNY, TAN, BULL. SOC. CHIM. BELG., 1986, 95, N 1, 49-56
作者:COMPAGNON, P. -L.、GASQUEZ, F.、KIMNY, TAN
DOI:——
日期:——
Intramolecular Pd-Catalyzed Reductive Amination of Enolizable sp<sup>3</sup>-C–H Bonds
作者:Russell L. Ford、Isabel Alt、Navendu Jana、Tom G. Driver
DOI:10.1021/acs.orglett.9b03458
日期:2019.11.1
A palladium-catalyzed reductive cyclization of nitroarenes has been designed to construct sp3-C–NHAr bonds from sp3-C–H bonds by using an enolizable nucleophile to intercept a nitrosoarene intermediate. Exposure of ortho-substituted nitroarenes to 5 mol % of Pd(OAc)2 and 10 mol % of phenanthroline under 2 atm of CO constructs partially saturated 5-, 6-, or 7-membered N-heterocycles using α-pyridyl
Modular Access to 2-(Trifluoromethyl)pyrazolo[1,5-<i>a</i>]pyridines and Their Benzo Analogues through a Copper(I)-Catalyzed Radical Annulation
作者:Zhenhui Wang、Xiaofeng Li、Jie Qiu、Wei Li、Hengyuan Li、Zhiqiang Weng、Huaifeng Li
DOI:10.1021/acs.orglett.2c02500
日期:2022.9.2
distinctive copper-catalyzed radical annulation to valuable 2-(trifluoromethyl)pyrazolo[1,5-a]pyridines and their benzo analogues has been described for the first time. Notably, the newly developed complementary process allows the synthesis of 4- or 6-substituted target molecular entities as a single product, which was previously challenging to access by existing methods. The utility of this process is further
首次描述了一种机制独特的铜催化自由基环化对有价值的 2-(三氟甲基)吡唑并[1,5- a ] 吡啶及其苯并类似物的反应。值得注意的是,新开发的补充工艺允许将 4 或 6 取代的目标分子实体作为单一产品合成,这在以前很难通过现有方法获得。该过程的实用性通过四种不同环系统的简易构建、克级合成和生物活性分子的后期功能化得到进一步证明。