Benzimidazoles for inhibiting protein tyrosine kinase mediated cellular
申请人:Warner-Lambert Company
公开号:US05990146A1
公开(公告)日:1999-11-23
Benzimidazoles of Formula I below are inhibitors of protein tyrosine kinases, and are useful in treating cellular proliferation. ##STR1## The compounds are especially useful in treating cancer, atherosclerosis, restenosis, and psoriasis.
A sensitive and selective fluorescent probe for fast detection of nitric oxide was synthesized by grafting a NO-trappero-phenylenediamine onto a rhodamine fluorophore.
Near-infrared pH probes based on phenoxazinium connecting with nitrophenyl and pyridinyl groups
作者:Wei-Jin Zhu、Jin-Yun Niu、Dan-Dan He、Ru Sun、Yu-Jie Xu、Jian-Feng Ge
DOI:10.1016/j.dyepig.2017.09.059
日期:2018.2
Three phenoxazinium compounds attached with o-nitrophenyl (3a), m-nitrophenyl (3b) and p-nitrophenyl (3c) groups were prepared, and the pH promoted emission spectra were used to evaluate the deprotonated-protonated equilibrium between phenoxazinium and phenoxazine. They showed nearly ON-OFF emission responses at 650–850 nm around pH 8.0–10.8, and the fluorescence related pKas of 3a–c were 8.7, 9.2
附接有三个吩恶嗪化合物ø硝基苯基(3A),米硝基苯基(图3b)和p硝基苯(图3c中制备)基团,并且pH促进发射光谱被用来评估吩恶嗪和吩恶嗪的去质子化的质子化的平衡。他们显示在pH 8.0-10.8附近在650-850 nm处几乎开-关发射响应,与荧光相关的3a-c的p K a s分别为8.7、9.2和8.9。带有吡啶基的两个苯并恶嗪化合物(7a–b进一步制备),pH增强的发射光谱受吩恶嗪鎓和吩恶嗪之间的去质子化质子平衡以及吡啶基和吡啶鎓基之间的平衡影响。它们在600–850 nm处显示出更强的红色和近红外发射,探针7a的p K a,1 = 3.71和p K a,2 = 9.68,探针7b的p K a,1 = 3.71 。此外,荧光成像实验表明探针7a是V79和HeLa细胞的溶酶体生物标记。
AMINOALKYL SUBSTITUTED ARYL SULFAMIDE DERIVATIVES AND METHODS OF THEIR USE
申请人:McComas Casey Cameron
公开号:US20080161366A1
公开(公告)日:2008-07-03
The present invention is directed to aminoalkyl-substituted aryl sulfamide derivatives of formula I:
or a pharmaceutically acceptable salt, stereoisomer or tautomer thereof, which are monoamine reuptake inhibitors, compositions containing these derivatives, and methods of their use for the prevention and treatment of conditions, including, inter alia, vasomotor symptoms, sexual dysfunction, gastrointestinal disorders and genitourinary disorder, depression disorders, endogenous behavioral disorders, cognitive disorders, diabetic neuropathy, pain, and other diseases or disorders.
4-(Benzimidazol-2-yl)-1,2,5-oxadiazol-3-ylamine derivatives: Potent and selective p70S6 kinase inhibitors
作者:Upul Bandarage、Brian Hare、Jonathan Parsons、Ly Pham、Craig Marhefka、Guy Bemis、Qing Tang、Cameron Stuver Moody、Steve Rodems、Sundeep Shah、Chris Adams、Jose Bravo、Emmanuelle Charonnet、Vladimir Savic、Jon H. Come、Jeremy Green
DOI:10.1016/j.bmcl.2009.07.022
日期:2009.9
We report herein the design and synthesis of 4-(benzimidazol-2-yl)-1,2,5-oxadiazol-3-amine derivatives as inhibitors of p70S6 kinase. Screening hits containing the 4-(benzimidazol-2-yl)-1,2,5-oxadiazol-3-ylamine scaffold were optimized for p70S6K potency and selectivity against related kinases. Structure-based design employing an active site homology model derived from PKA led to the preparation of benzimidazole 5-substituted compounds 26 and 27 as highly potent inhibitors (K-i < 1 nM) of p70S6K, with > 100-fold selectivity against PKA, ROCK and GSK3. (C) 2009 Elsevier Ltd. All rights reserved.