Stereoselective synthesis of (−)-N-Boc-statine and (−)-N-Boc-Norstatine
摘要:
An efficient synthesis of optically pure N-Boc-statine (9) and N-Boc-norstatine (11) has been developed via a syn selective Grignard reaction of N-Boc-leucinal with allyl- or vinylmagnesium bromide. (C) 1997 Published by Elsevier Science Ltd.
Design and Synthesis of Novel Helix Mimetics Based on the Covalent H-Bond Replacement and Amide Surrogate
作者:Junyang Liu、Shoubin Tang、Jia-Lei Yan、Tao Ye
DOI:10.3390/molecules28020780
日期:——
A novel hydrogen bond surrogate-based (HBS) α-helixmimetic was designed by the combination of covalent H-bond replacement and the use of an ether linkage to substitute an amide bond within a short peptide sequence. The new helix template could be placed in position other than the N-terminus of a short peptide, and the CD studies demonstrate that the template adopts stable conformations in aqueous
通过结合共价氢键取代和使用醚键取代短肽序列中的酰胺键,设计了一种新型的基于氢键替代物 (HBS) 的 α-螺旋模拟物。新的螺旋模板可以放置在短肽的 N 末端以外的位置,并且 CD 研究表明该模板在异常高温的水性缓冲液中采用稳定的构象。