Analogs of platelet activating factor. 3. Replacement of the phosphate moiety with a sulfonylbismethylene group
摘要:
An analogue of platelet activating factor (PAF) in which the phosphate moiety has been replaced with a sulfonylbismethylene group has been prepared. A key step in the synthetic sequence is the preparation of 4-[[3-(dimethylamino)propyl]thio]-1-(hexadecyloxy)-2-butanol via a one-pot reaction involving a sequential Michael addition and reduction. In comparison to racemic C16-PAF, 8 showed no platelet aggregating activity and substantially reduced hypotensive activity.
t-Butyl pyridine and phenyl C-region analogues of 2-(3-fluoro-4-methylsulfonylaminophenyl)propanamides as potent TRPV1 antagonists
作者:Sunho Lee、Dong Wook Kang、HyungChul Ryu、Changhoon Kim、Jihyae Ann、Hobin Lee、Eunhye Kim、Sunhye Hong、Sun Choi、Peter M. Blumberg、Robert Frank-Foltyn、Gregor Bahrenberg、Hannelore Stockhausen、Thomas Christoph、Jeewoo Lee
DOI:10.1016/j.bmc.2017.03.004
日期:2017.4
A series of 2-substituted 6-t-butylpyridine and 4-t-butylphenyl C-region analogues of 2-(3-fluoro-4-methylsulfonamidophenyl)propanamides were investigated for hTRPV1 antagonism. The analysis of structure activity relationships indicated that the pyridine derivatives generally exhibited a little better antagonism than did the corresponding phenyl surrogates for most of the series. Among the compounds
研究了一系列 2-(3-氟-4-甲基磺酰氨基苯基)丙酰胺的 2-取代 6-叔丁基吡啶和 4-叔丁基苯基 C 区类似物的 hTRPV1 拮抗作用。结构活性关系分析表明,对于大多数系列,吡啶衍生物通常比相应的苯基替代物表现出更好的拮抗作用。其中,化合物7对辣椒素活化表现出优异的拮抗作用,Ki=0.1nM,而化合物60S在神经病理性疼痛模型中表现出强效的抗异常疼痛作用,10mg/kg的MPE为83%。hTRPV1同源模型中7S的对接研究表明,7S的A/B区与Tyr511之间的相互作用以及7S的C区中的叔丁基和乙基与Tyr511的两个疏水结合袋之间的相互作用hTRPV1 促成了高效力。
Asymmetric synthesis of amino acids by pyridoxamine enzyme analogs utilizing general base-acid catalysis
作者:Steven C. Zimmerman、Ronald Breslow
DOI:10.1021/ja00317a054
日期:1984.3
Transamination de cetoacides, en presence d'aminomethyl-4 dimethylamino-3' propylthio-5 tetrahydro-5,6,7,8 quinoleinol-3
转氨基 de cetoacides, en存在 d'aminomethyl-4 dimethylamino-3' propylthio-5 tetrahydro-5,6,7,8 quinoleinol-3
Synthesis, Evaluation, and Mechanism Study of New Tepotinib Derivatives as Antiproliferative Agents
作者:Niu-niu Zhang、Bai-jiao An、Yan Zhou、Xing-shu Li、Ming Yan
DOI:10.3390/molecules24061173
日期:——
a series of new Tepotinib derivatives were synthesized and evaluated for their ability to act as antiproliferativeagents to find the leading compounds with good activity and limited side effects. Among them, compound 31e exhibited potent antiproliferative activity (IC50 (50% inhibitory concentration) = 0.026 μΜ) against hepatic carcinoma 97H (human liver cancercell) cells and, importantly, had very
Degradable polyesters via ring-opening polymerization of functional valerolactones for efficient gene delivery
作者:Ling Song、Ai-Xiang Ding、Ke-Xin Zhang、Bing Gong、Zhong-Lin Lu、Lan He
DOI:10.1039/c7ob00822h
日期:——
pharmaceutical areas. Herein, we report the synthesis of a series of block co-polyesters (B1-B6) and random co-polyesters (C1-C4) via ring-opening polymerization of tertiary amine-bearing valerolactone and alkylated valerolactone monomers. These polymers can completely inhibit the electrophoretic migrations of plasmid DNAs (pDNAs) at a w/w ratio of 2‒6. The polyplexes of these polymers with pDNAs were steadily
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