The invention concerns novel renin-inhibitory peptides which are useful for treating renin associated hypertension and for treating hyperaldosteronism. Novel intermediates, processes for preparing both the intermediates and the novel peptides, pharmaceutical compositions, and methods of treatment are included.
Synthesis and Characterization of Novel Peptido Calixarene Dimers
作者:Reza Zadmard、Malihe Hajiramezanali
DOI:10.2174/15701786113109990022
日期:2013.8.1
Aniliniumcalix[4]arene dimers with peptide bridges to increase hydrogen bonding between amino acids and
nucleic acid bases have been synthesized. Three different kinds of peptide bridges containing L-Alanine, L-Phenylalanine,
and L-Tyrosine were prepared by liquid phase peptide synthesis. The dimers were characterized by NMR, MS and ESIMS
spectrometry.
We report the use of isonitriles as alkyl radical precursors in visible-light mediated hydro- and deuterodeamination reactions. Most examples only require visible-light irradiation of the isonitrile in the presence of a silyl radical precursor, although a significant acceleration was observed in the presence of an organic photocatalyst. The method is scalable, shows broad functional group compatibility
我们报道了在可见光介导的加氢和氘代脱氨基反应中使用异腈作为烷基自由基前体。大多数例子仅需要在甲硅烷基自由基前体存在下对异腈进行可见光照射,尽管在有机光催化剂存在下观察到显着的加速。该方法具有可扩展性,显示出广泛的官能团兼容性,并且适用于 C α伯、C α仲和 C α叔烷基异腈。