Design and synthesis of bile acid–peptide conjugates linked via triazole moiety
作者:Nadezhda V. Sokolova、Gennadij V. Latyshev、Nikolay V. Lukashev、Valentine G. Nenajdenko
DOI:10.1039/c0ob01188f
日期:——
A conjugation of bile acids with peptidesviaCu(I)-catalyzed click chemistry has been described. Novel bile acidâpeptide conjugates linked via a 1,2,3-triazole moiety based on cholic, deoxycholic and lithocholic acid derivatives were synthesized using Cu(I)-catalyzed 1,3-dipolar cycloaddition (âclickâ reaction). It was shown that up to three peptide fragments can be attached to a central steroid core, thus forming complex three-dimensional polyconjugate structures, which can find important applications in biochemistry, medicinal chemistry, and coordination chemistry.
Synthesis and biological activity of <i>N</i>-substituted-tetrahydro-γ-carbolines containing peptide residues
作者:Nadezhda V Sokolova、Valentine G Nenajdenko、Vladimir B Sokolov、Daria V Vinogradova、Elena F Shevtsova、Ludmila G Dubova、Sergey O Bachurin
DOI:10.3762/bjoc.10.13
日期:——
The synthesis of novel peptide conjugates of N-substituted-tetrahydro-gamma-carbolines has been performed using the sequence of the Ugi multicomponent reaction and Cu(I)-catalyzed click chemistry. The effect of obtained gamma-carboline-peptide conjugates on the rat liver mitochondria was evaluated. It was found that all compounds in the concentration of 30 microM did onot induce depolarization of mitochondria
N-取代-四氢-γ-咔啉的新型肽缀合物的合成已使用 Ugi 多组分反应和 Cu (I) 催化点击化学的序列进行。评估了获得的γ-咔啉-肽缀合物对大鼠肝线粒体的影响。发现30μM浓度的所有化合物均不诱导线粒体去极化,但对线粒体通透性转变具有一定的抑制作用。含有末端炔基的原始 N-取代四氢-γ-咔啉表现出很高的促氧化活性,而它们与肽片段的结合物略微抑制了自氧化和 t-BHP 诱导的脂质过氧化。
Synthesis of macrocyclic peptidomimetics <i>via</i> the Ugi-click-strategy
作者:Elena A. Zakharova、Olga I. Shmatova、Irina V. Kutovaya、Victor N. Khrustalev、Valentine G. Nenajdenko
DOI:10.1039/c9ob00229d
日期:——
Ugi-click-strategy was employed for the synthesis of 12–28 membered 1,2,3-triazole derived macrocyclic peptidomimetics. The Ugi reaction with acid components bearing acetylenic fragments and azidoisocyanides provided the corresponding peptidomimetics in up to 97% isolated yield. The subsequent CuAAC click reaction with these bifunctional substrates containing both acetylene and azide groups was investigated
1,3-Cycloaddition synthesis of 1,2,3-triazole conjugates of betulonic acid with peptides
作者:A. I. Govdi、S. F. Vasilevsky、V. G. Nenajdenko、N. V. Sokolova、G. A. Tolstikov
DOI:10.1007/s11172-011-0369-3
日期:2011.11
1,2,3-Triazole conjugates of betulonic acid with peptides were synthesized by 1,3-dipolar cycloaddition of azido peptides to N-(3-oxolup-20(29)-en-28-oyl)-4-ethynylaniline.
Efficient synthesis of tetrazole derivatives of cytisine using the azido-Ugi reaction
作者:Danil P. Zarezin、Adil M. Kabylda、Valentina I. Vinogradova、Pavel V. Dorovatovskii、Victor N. Khrustalev、Valentine G. Nenajdenko
DOI:10.1016/j.tet.2018.06.045
日期:2018.8
The azido-Ugi reaction with natural alkaloid cytisine was investigated. It was demonstrated that the reaction could be performed with various carbonyls (both aldehydes and ketones) and isocyanides. The transformation proceeded under mild conditions in methanol using TMSN3 as a source of hydrazoic acid to give target tetrazole derivatives of cytisine in up to 98% yield. The diastereoselectivity of this