NAD +依赖性脱乙酰基酶SIRT2代表了药物开发的诱人靶标。在这里,我们基于对最近报道的SIRT2选择性抑制剂的推定结合模式的分析,设计并合成了药物样SIRT2选择性抑制剂,并评估了其对SIRT2的抑制活性。这导致我们开发了一种更像药物的二酮哌嗪结构,作为“氢键(H键)猎人”,以靶向SIRT2的底物结合位点为目标。预期占据SIRT2的“选择性口袋”的二酮哌嗪和2-苯胺基苯甲酰胺的共轭物硫酰胺53表现出有效的SIRT2选择性抑制作用。SIRT2被53抑制是通过形成53-ADP-核糖缀合物来介导的,这表明53是针对“选择性口袋”的基于机制的抑制剂,底物结合位点和NAD +结合位点。此外,有53个对乳腺癌细胞显示出有效的抗增殖活性,并促进Neuro-2a细胞的神经突向外生长。这些发现应该为癌症和神经系统疾病的新型治疗剂的发现铺平道路。
Ring contraction of 2,5-diketopiperazines by TRAL-alkylation led us to the stereoselectivesynthesis of original pyrrolidine-2,4-diones, a novel series of promising molecules with moderate anti-proliferative activity on breast cancer cells.
Synthesis of a Protected Sperm Whale Myoglobin-(77–96)-Eicosapeptide and Circular Dichroism Spectra of the Related Peptides
作者:Chikao Hashimoto、Ichiro Muramatsu
DOI:10.1246/bcsj.62.1900
日期:1989.6
A protected sperm whale myoglobin-(77–96)-eicosapeptide (23) was synthesized by a solution method. The protected peptide 23 could be effectively purified by silica-gel column chromatography with 1-butanol–acetic acid–water as the eluate. The CD spectra of protected fragment peptides were measured in a solution of 2,2,2-trifluoroethanol. A protected sperm whale myoglobin-(85–96)-dodecapeptide and 23
通过溶液法合成了受保护的抹香鲸肌红蛋白-(77-96)-二十肽 (23)。受保护的肽 23 可以通过硅胶柱色谱法以 1-丁醇-乙酸-水为洗脱液进行有效纯化。在 2,2,2-三氟乙醇溶液中测量受保护片段肽的 CD 光谱。受保护的抹香鲸肌红蛋白-(85-96)-十二肽和 23 显示出螺旋结构特征的 CD 剖面。
Redox amino acids and peptides containing them
申请人:University of Florida
公开号:US05639885A1
公开(公告)日:1997-06-17
The invention provides novel amino acids and peptides containing them which comprise a dihydropyridine.revreaction.pyridinium salt-type redox system and which provide site-specific and sustained delivery of pharmacologically active peptides to the brain. These new amino acids contain a redox system appended directly or via an alkylene bridge to the carbon atom adjacent to the carboxyl carbon and may be incorporated into a peptide chain at a variety of positions, including non-terminal positions.
The invention provides novel amino acids and peptides containing them which comprise a dihydropyridine.revreaction.pyridinium salt-type redox system and which provide site-specific and sustained delivery of pharmacologically active peptides to the brain. These new amino acids contain a redox system appended directly or via an alkylene bridge to the carbon atom adjacent to the carboxyl carbon and may be incorporated into a peptide chain at a variety of positions, including non-terminal positions.
Amino acids containing dihydropyridine ring systems for site-specific
申请人:University of Florida
公开号:US04888427A1
公开(公告)日:1989-12-19
The invention provides novel amino acids and peptides containing them which comprise a dihydropyridine.revreaction.pyridinium salt-type redox system and which provide site-specific and sustained delivery of pharmacologically active peptides to the brain. These new amino acids contain a redox system appended directly or via an alkylene bridge to the carbon atom adjacent to the carboxyl carbon and may be incorporated into a peptide chain at a variety of positions, including non-terminal positions.