Compounds containing a fused bicycle ring and processes therefor
申请人:Bristol-Myers Squibb Company
公开号:US05508272A1
公开(公告)日:1996-04-16
Compounds of the formula ##STR1## wherein X is O or S--(O).sub.t ; n is one or two; m is zero or one; Y is CH.sub.2, O, or S--(O).sub.t provided that Y is O or S--(O).sub.t only when m is one; and A is ##STR2## are dual inhibitors of NEP and ACE. Compounds wherein A is ##STR3## are selective ACE inhibitors. Also disclosed are methods of preparation and intermediates.
The absolute stereochemistry of chiral carboxylicacids is determined as a di(1‐naphthyl)methanol ester derivative. Computational scoring of conformations favoring either P or M helicity of the naphthyl groups, capable of exciton‐coupled circular dichroic coupling, leads to a predicted stereochemistry for the derivatized carboxylicacids.
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。
Levene; Mori; Mikeska, Journal of Biological Chemistry, 1927, vol. 75, p. 344