Synthesis and cytotoxicity of Baylis-Hillman template derived betulinic acid-triazole conjugates
作者:Pathi Suman、Amardeep Patel、Lucas Solano、Gayathri Jampana、Zachary S. Gardner、Crystal M. Holt、Subash C. Jonnalagadda
DOI:10.1016/j.tet.2016.11.056
日期:2017.7
Several alkynes and azides were prepared starting from betulinic acid and Baylis-Hillman reaction-derived allylic alcohols. These alkynes and azides were then coupled under click cycloaddition conditions to obtain functionalized betulinic acid-triazole conjugates. Similarly, pyrazinyl- and indolylbetulinic acid-triazoles were also prepared employing cycloaddition chemistry. All the synthetic compounds
Synthesis of C17-[5-methyl-1,3]-oxazoles by <i>N</i>-propargylation of triterpenic acids and evaluation of their cytotoxic activity
作者:E. F. Khusnutdinova、A. V. Petrova、A.N. Lobov、O. S. Kukovinets、D. S. Baev、O. B. Kazakova
DOI:10.1080/14786419.2020.1744139
日期:2021.11.2
4-seco-3-nor-lup-4(23),20(29)-diene has demonstrated the highest activity with GI50 ranged from 1.03 to 16.4 μM against different cancer cell lines. Molecular docking in Kelch domain of Keap1 protein was performed to study a possible molecular target. Thus, we have shown for the first time that triterpenic C17-[5-methyl-1,3]-oxazoles are alternative products of the interaction of triterpenic acidchlorides with
Synthesis and evaluation of 2,3-indolotriterpenoids as new α-glucosidase inhibitors
作者:Elmira F. Khusnutdinova、Irina E. Smirnova、Oxana B. Kazakova、Anastasiya V. Petrova、Nguyen Thi Thu Ha、Do Quoc Viet
DOI:10.1007/s00044-017-1972-0
日期:2017.11
AbstractA series of ring-A fused heterocycles of lupane, oleanane, ursane and dammarane triterpenoids were synthesized and evaluated for their inhibitory activity against α-glucosidase. An influence of the different types of triterpenoids with indole and pyrazine cycles on the activity was revealed. Among them, 2,3-indolo-lup-20(29)-en-28-oic acid with an IC50 of 1.8 µM was the most active compound
Synthesis and cytotoxic activity of heterocyclic ring-substituted betulinic acid derivatives
作者:Vivek Kumar、Nidhi Rani、Pawan Aggarwal、Vinod K. Sanna、Anu T. Singh、Manu Jaggi、Narendra Joshi、Pramod K. Sharma、Raghuveer Irchhaiya、Anand C. Burman
DOI:10.1016/j.bmcl.2008.08.003
日期:2008.9
A new series of betulinic acid derivatives have been synthesized by introducing heterocyclic ring between C-2 and C-3 positions of betulinic acid. Further modi. cations were also carried out by reduction of C-20(29) unsaturated bond and substitution of C-28 carboxyl group by ester and amide linkage to enhance the selectivity. Compound 11 resulted in IC50 of 2.44, 2.5, and 2.7 mu g/ml on MIAPaCa, PA-1, and SW620 cancer cell lines, respectively. Compound 38 resulted in IC50 of 0.67 mu g/ml on MIAPaCa cell line. (C) 2008 Elsevier Ltd. All rights reserved.
Synthesis and Cytotoxicity of Triterpenic Acids Modified at C3 and C28 Positions
作者:E. F. Khusnutdinova、A. V. Petrova、O. B. Kazakova、A. E. Barmashov
DOI:10.1134/s1068162019050042
日期:2019.11
Series of N-, S- and Br-derivatives of betulinic, oleanolic, and ursolic acids have been synthesized and screened for their in vitro antitumor activity (cytotoxicity). N-Methylpiperazinylamide of 2-[3-pyridinylidene]-ursolic acid and methyl 2-methylideneureido-betulonate have shown significant cytotoxic activity against the PC3 cancer cells (IC50 = 8 mu M) and HCT-116 cell line (IC50 = 5.7 mu M).