Neoglycopeptides through direct functionalization of cysteine
摘要:
Neoglycopeptides are readily prepared by direct functionalization of cysteine-containing peptides followed by click triazole formation between the resulting propargylated peptides and protected or free (2-azido)-ethyl gluco-, manno,- and galactopyranosides. (C) 2010 Elsevier Ltd. All rights reserved.
The synthesis of S-alkylated cysteinederivatives was carried out successfully in the presence of 1,1,3,3-tetramethylguanidine. Alkylation proceeded in high yields on unprotected amino acids and peptides containing a sulfhydryl group.
USE OF ALLYLCYSTEINE OR ITS ANALOGS AND PHARMACEUTICAL COMPOSITION THREROF
申请人:Fudan University
公开号:EP2186512A1
公开(公告)日:2010-05-19
The invention discloses a use of compound S-allyl cysteine or its analogues in preparation of medicaments for preventing or treating myocardial injury and a preparation method thereof, as well as a pharmaceutical composition comprising the compound.
Method Of Synthesizing S-Allyl-Cysteine Analogues And Their Therapeutic Application In Treating Myocardial Infarction
申请人:ZHU YIZHUN
公开号:US20090036534A1
公开(公告)日:2009-02-05
A pharmaceutical composition and methods of producing and application of the composition for treating myocardial infarction of a subject are disclosed. The pharmaceutical composition comprises a therapeutically effective amount of at least one synthesized compound selected from the group consisting of SEC, SPC, SBC, SPEC, SAC, SAMC, and SPRC, and a pharmaceutically acceptable carrier.
Synthesis and conformational behavior of metallacyclicdipeptides derived from coordination of side chain alkynylamino acids to tungsten
作者:Timothy P. Curran、T. Andrew McTeague、Vu D. Nguyen、Craig J. Yennie、Paul R. Handali、Joseph P. Sanderson-Brown、Zephyr D. Dworsky
DOI:10.1016/j.jorganchem.2016.01.023
日期:2016.3
reacted with W(CO)3(dmtc)2 [dmtc = dimethyldithiocarbamate] to afford, respectively, three metallacyclicpeptides, 18, 19 and 20. The metallacyclicpeptides were characterized by HPLC, ES-MS, and 1HNMR. The conformational behavior of the alkynes about the tungsten center was assessed using 1HNMR. It was found that all three metallacyclicpeptides adopt multiple conformations of the alkynes relative to
制备了三个在其侧链上带有炔烃的二肽(9(源自二赖氨酸),14(源自二半胱氨酸)和17(源自二甘氨酸)),并与W(CO)3(dmtc)2 [dmtc =二甲基二硫代氨基甲酸酯]反应得到,分别为3个metallacyclicpeptides,18,19和20。金属环肽通过HPLC,ES-MS和1 H NMR进行表征。使用1 H NMR评估炔烃关于钨中心的构象行为。发现所有三个金属环肽相对于钨都具有炔烃的多种构象。两个都18和19似乎采用了所有8种可能的构象,而20则采用了数量有限的构象。通过使用可变温度1 H NMR检查炔烃氢共振来评估炔烃在顺式和反式构象之间平衡的能力。发现18和19中的炔配体将在顺式和反式构象之间平衡。18中的炔烃氢共振在343 K附近合并为一个信号,而19中的炔烃氢共振甚至在360 K时也无法完全合并。配合物18的环比配合物19大。,而19的较高聚结温度归因于其较小的环尺