Selective inhibition of thapsigargin-induced contraction and capacitative calcium entry in mouse anococcygeus by trifluoromethylphenylimidazole (TRIM)
摘要:
This study examined the effects of trifluoromethylphenylimidazole (TRIM) on tone, and calcium entry, in mouse anococcygeus stimulated by either thapsigargin (Tg; 100 nM) which activates capacitative calcium entry (CCE), or high K (60 mM) which activates voltage‐operated calcium channels. TRIM (1 – 333 μM) produced concentration‐related relaxation of Tg‐induced tone (EC50, 42 μM) but was much less effective against high K. In single smooth muscle cells loaded with FURA‐2, TRIM reduced the increase in fluorescence ratio produced by Tg but had no effect on that produced by high K. The relaxations of Tg‐induced tone, and reduction in fluorescence ratio, were obtained in the presence of L‐NG‐nitroarginine and were thus independent of nitric oxide synthase inhibition; further, TRIM had no discernible effect on nitrergic responses. TRIM provides a novel drug for the selective inhibition of CCE and a template for the development of more potent inhibitors.British Journal of Pharmacology (2001) 134, 233–236; doi:10.1038/sj.bjp.0704286
Experimental determination of the conformational free energies (A values) of fluorinated substituents in cyclohexane by dynamic 19F NMR spectroscopy. Part 2. Extension to fluoromethyl, difluoromethyl, pentafluoroethyl, trifluoromethylthio and trifluoromethoxy groups
The synthesis of monosubstituted and 1,4-substituted cyclohexanes bearing one of the title groups is described. The conformationalanalysis of these compounds was studied by 19F NMR spectroscopy at various temperatures. Chemical shifts for each conformer above the coalescence temperature were obtained by binomial regression from low temperature values, allowing the high precision determination of the
描述了带有标题基团之一的单取代和1,4-取代的环己烷的合成。通过在不同温度下的19 F NMR光谱研究了这些化合物的构象分析。通过从低温值进行二项式回归,获得了高于聚结温度的每个构象异构体的化学位移,从而可以高精度确定平衡常数以及氟化物的相应热力学参数(ΔG °,ΔH °,ΔS °)取代基。对于甲值(-Δ ģ ° 298K),以下平均获得数据:1.59(CFH 2),1.85(CF 2H),2.67(C 2 F 5),0.79(OCF 3)和1.18(SCF 3)[以kcal mol -1表示]。
Palladium-Catalyzed Arylation of Alkyl Sulfenate Anions
作者:Tiezheng Jia、Mengnan Zhang、Hui Jiang、Carol Y. Wang、Patrick J. Walsh
DOI:10.1021/jacs.5b08117
日期:2015.11.4
A unique palladium-catalyzedarylation of alkyl sulfenate anions is introduced that affords aryl alkyl sulfoxides in high yields. Due to the base sensitivity of the starting sulfoxides, sulfenate anion intermediates, and alkyl aryl sulfoxide products, the use of a mild method to generate alkyl sulfenate anions was crucial to the success of this process. Thus, a fluoride triggered elimination strategy
[EN] PROSTAGLANDIN E2 RECEPTOR 4 ANTAGONISTS AND USES THEREOF<br/>[FR] ANTAGONISTES DU RÉCEPTEUR 4 DE LA PROSTAGLANDINE E2 ET LEURS UTILISATIONS
申请人:TEON THERAPEUTICS INC
公开号:WO2020251957A1
公开(公告)日:2020-12-17
Disclosed herein are compounds, compositions, and methods for modulating the prostaglandin E2 receptor 4 (EP4) with the compounds and compositions disclosed herein. Also described are methods of treating diseases or disorders that are mediated by the action of prostaglandin E2 (PGE2) at the prostaglandin E2 receptor 4 (EP4), such as cancer, with EP4 antagonists.
TRPV1 antagonist with high analgesic efficacy: 2-Thio pyridine C-region analogues of 2-(3-fluoro-4-methylsulfonylaminophenyl)propanamides
作者:Tae-Hwan Ha、HyungChul Ryu、Sung-Eun Kim、Ho Shin Kim、Jihyae Ann、Phuong-Thao Tran、Van-Hai Hoang、Karam Son、Minghua Cui、Sun Choi、Peter M. Blumberg、Robert Frank、Gregor Bahrenberg、Klaus Schiene、Thomas Christoph、Sven Frormann、Jeewoo Lee
DOI:10.1016/j.bmc.2013.08.015
日期:2013.11
A series of 2-thio pyridine C-region analogues of 2-(3-fluoro-4-methylsulfonylaminophenyl)propanamides were investigated as hTRPV1 antagonists. Among them, compound 24S showed stereospecific and excellent TRPV1 antagonism of capsaicin-induced activation. Further, it demonstrated strong anti-allodynic in a rat neuropathic pain model. Consistent with its action in vitro being through TRPV1, compound
3-Arylisothiazoles of the formula I
1
in which the variables X, Q, R
1
, R
2
, R
3
, R
4
, R
5
are as defined in claim 1, and salts thereof, and their use for controlling harmful plants, are described.