报告内容: Cyclic peptides have provided an important platform for the exploration of biorelevant chemical space between small molecules and biologics. In comparison with the state-of-the-art synthesis of small molecules, chemists’ ability to fine-tune the three-dimensional structures and properties of cyclic peptides is much limited. In this talk, I will discuss our recent investigation of various chemical strategies, including metal-catalyzed and classical polar reactions, for the synthesis of peptide macrocycles with different structure features: 1) Construction of cyclophane-braced peptide macrocycles via palladium-catalyzed intramolecular arylation of various C-H bonds. 2) Streamlined construction of S-aryl ether-linked peptide macrocycles via palladium-catalyzed intramolecular S-arylation in solution and on DNA template. 3) Cooperative stapling of unprotected peptides at lysine and tyrosine or arginine with simple formaldehyde. 陈弓教授简介: 陈弓, 男,1998年本科毕业于南京大学化学系,2004年于美国哥伦比亚大学化学系获得生物有机化学博士学位。2005-2008年,在美国斯隆-凯特琳癌症研究中心进行博士后工作。2008年起在美国宾州州立大学化学系独立开展教学科研工作,2014年获得终身(副)教授职位。2015年起,在南开大学元素有机化学国家重点实验室全职工作。2022年起,担任 Organic Letters 杂志副主编。课题组主要从事复杂糖肽类化合物的有机合成及其化学生物学研究。独立工作以来,在多种学术刊物上发表学术论文100余篇。先后获得US-NSF CAREER奖和国家自然科学基金杰出青年基金等项目资助。 主要研究方向: 碳氢键活化化学,糖化学,多肽化学,化学生物学
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