A series of non-quinoline cysLT1 receptor antagonists: Sar study on pyridyl analogs of singulair®
摘要:
The structure-activity relationship of a series of styrylpyridine analogs of MK-0476 (montelukast, Singulair(R)) is described. This work has led to the identification of a number of potent and orally active cysLT(1), receptor (LTD4 receptor) antagonists including 2ab (1,-733,321) as an optimized candidate. (C) 1998 Elsevier Science Ltd. All rights reserved.
Manganese-Catalyzed Kumada Cross-Coupling Reactions of Aliphatic Grignard Reagents with N-Heterocyclic Chlorides
作者:Ellen Matson、Brittney Petel、Merjema Purak
DOI:10.1055/s-0037-1610200
日期:2018.8
manganese(II) chloride for the catalytic generation of C(sp2)–C(sp3) bonds via Kumadacross-coupling. Rapid and selective formation of 2-alkylated N-heterocyclic complexes were observed in high yields with use of 3 mol% MnCl2THF1.6 and under ambient reaction conditions (21 °C, 15 min to 20 h). Manganese-catalyzed cross-coupling is tolerant toward both electron-donating and electron-withdrawing functional
Fused Heterocyclic Compounds as Ion Channel Modulators
申请人:Kobayashi Tetsuya
公开号:US20120010192A1
公开(公告)日:2012-01-12
The present disclosure relates to compounds that are sodium channel inhibitors and to their use in the treatment of various disease states, including cardiovascular diseases and diabetes. In particular embodiments, the structure of the compounds is given by Formula I:
wherein R
1
, R
2
, R
3
, R
4
, and R
5
are as described herein, to methods for the preparation and use of the compounds and to pharmaceutical compositions containing the same.
Palladium‐Catalyzed Secondary C(
<i>sp</i>
<sup>3</sup>
)−H Arylation of 2‐Alkylpyridines
作者:Hong‐Liang Li、Yoichiro Kuninobu
DOI:10.1002/adsc.202000306
日期:2020.7.16
A pyridyl group‐assisted palladium‐catalyzed secondary C(sp3)−H arylation protocol was developed. A substituent at the 3‐position of the pyridyl group is proved to be important for promoting C−H arylation and controlling the regioselectivity. Aryl iodides can be used as coupling partners. The reaction proceeded in good to excellent yields with good functional group tolerance, even on the gram‐scale