Abstract The scope and limitations of guanidiniumylide mediated aziridinations from arylaldehydes yielding unactivated 3-arylaziridine-2-carboxylates, applicable to asymmetric synthesis, are discussed. The scope and limitations of guanidiniumylide mediated aziridinations from arylaldehydes yielding unactivated 3-arylaziridine-2-carboxylates, applicable to asymmetric synthesis, are discussed.
An Electrochemical Approach to Designer Peptide α-Amides Inspired by α-Amidating Monooxygenase Enzymes
作者:Yutong Lin、Lara R. Malins
DOI:10.1021/jacs.1c05718
日期:2021.8.4
amides are accessed in an efficient and epimerization-free approach by pairing an electrochemical oxidative decarboxylation with a tandem hydrolysis/reduction pathway. Resembling Nature’s dual enzymatic approach to bioactive primary α-amides, this method delivers secondary and tertiary amides bearing high-value functional motifs, including isotope labels and handles for bioconjugation. The protocol leverages
通过将电化学氧化脱羧与串联水解/还原途径配对,以一种有效且无差向异构化的方法获得设计者 C 末端肽酰胺。类似于 Nature 对生物活性伯 α-酰胺的双重酶促方法,该方法提供具有高价值功能基序的仲和叔酰胺,包括同位素标记和用于生物偶联的手柄。该协议利用了 C 末端羧酸盐的固有反应性,与绝大多数蛋白质功能组兼容,并且在没有差向异构化的情况下进行,从而解决了与传统基于耦合的方法相关的主要限制。该方法的实用性通过合成天然产物 acidiphilamide A来举例说明关键的非对映选择性还原,以及生物活性肽和相关类似物,包括抗 HIV 先导肽和重磅炸弹癌症治疗剂亮丙瑞林。
Methods for preparing internally constrained peptides and peptidomimetics
申请人:New York University
公开号:US09221871B2
公开(公告)日:2015-12-29
The present invention relates to a method for preparing a peptide having a stable, internally constrained alpha-helical, beta-sheet/beta-turn, 310-helical, or pi-helical region and a method of stabilizing an alpha-helical, beta-sheet/beta-turn, 310-helical, or pi-helical region within a peptide structure. The resulting peptides and methods of using them are also disclosed.
The present invention provides a blood glucose elevation inhibitor having a serine protease inhibitory action, which is a novel therapeutic or prophylactic agent for obesity. A compound represented by the following formula (I)
wherein each symbol is as described in the specification,
or a pharmaceutically acceptable salt thereof.
[EN] MONOCYCLIC ANILIDE SPIROHYDANTOIN CGRP RECEPTOR ANTAGONISTS<br/>[FR] ANTAGONISTES DES RECEPTEURS DU CGRP D'ANILIDE SPIROHYDANTOINE MONOCYCLIQUE
申请人:MERCK & CO INC
公开号:WO2004083187A1
公开(公告)日:2004-09-30
The present invention is directed to compounds that are antagonists of CGRP receptors and that are useful in the treatment or prevention of diseases in which the CGRP is involved, such as headache, migraine and cluster headache. The invention is also directed to pharmaceutical compositions comprising these compounds and the use of these compounds and compositions in the prevention or treatment of such diseases in which CGRP is involved.