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LiWen H, Yanliang Y, Tretyakova EV, Smirnova AA, Kazakova OB, Xiao S. Synthesis and bioevaluation of water-soluble β-cyclodextrin-diterpene acid conjugates. Nat Prod Res 2024:1-9. [PMID: 38684026 DOI: 10.1080/14786419.2024.2347449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 04/17/2024] [Indexed: 05/02/2024]
Abstract
A series of β-cyclodextrin (β-CD)-conjugates were prepared by combining three abietane-type diterpene acids with two azide-functionalized β-CDs via click chemistry, and the antiviral activity against wild-type and omicron SARS-CoV-2 spike pseudovirus as well as the antibacterial activity against Escherichia coli were investigated. All the synthesised conjugates exhibited no significant cytotoxicity to BHK-21-hACE2 cells with cell viability over 80% at concentration of 15 µM. Among the conjugates, the heptavalent β-CD-dehydroabietic acid conjugate 6b exhibited higher anti-SARS-CoV-2 activity against the omicron variant compared to the other conjugates. This study suggested that the multivalent diterpene acid derivatives may have potential application against coronaviruses as entry inhibitors.
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Affiliation(s)
- Hua LiWen
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Yi Yanliang
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
| | - Elena V Tretyakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia
| | - Anna A Smirnova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russia
| | - Sulong Xiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing, China
- Shenzhen Bay Laboratory, Gaoke International Innovation Center, Shenzhen, China
- Ningbo Institute of Marine Medicine, Peking University, Ningbo, China
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Petrova AV, Poptsov AI, Heise NV, Csuk R, Kazakova OB. Diethoxyphosphoryloxy-oleanolic acid is a nanomolar-inhibitor of butyrylcholinesterase. Chem Biol Drug Des 2024; 103:e14506. [PMID: 38480508 DOI: 10.1111/cbdd.14506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2023] [Revised: 01/22/2024] [Accepted: 03/06/2024] [Indexed: 03/27/2024]
Abstract
A series of new betulin, lupeol, erythrodiol, and oleanolic acid phosphoryloxy- and furoyloxy-derivatives has been synthesized and their structure was confirmed by NMR spectroscopy. Synthesized compounds were subjected to Ellman's assays to determine their ability to inhibit the enzymes AChE and BChE. Among them, diethoxyphosphoryloxy-oleanolic acid inhibited BChE with a value of 99%, thereby acting as a mixed-type inhibitor holding very low Ki values of Ki = 6.59 nM and Ki ' = 1.97 nM, respectively.
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Affiliation(s)
- Anastasiya V Petrova
- Ufa Institute of Chemistry, Ufa Federal Research Centre, Russian Academy of Science, Ufa, Russia
| | - Alexandr I Poptsov
- Ufa Institute of Chemistry, Ufa Federal Research Centre, Russian Academy of Science, Ufa, Russia
| | - Niels V Heise
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Halle (Saale), Germany
| | - René Csuk
- Martin-Luther-University Halle-Wittenberg, Organic Chemistry, Halle (Saale), Germany
| | - Oxana B Kazakova
- Ufa Institute of Chemistry, Ufa Federal Research Centre, Russian Academy of Science, Ufa, Russia
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Smirnova IE, Galimova ZI, Sapozhnikova TA, Khisamutdinova RY, Thi THN, Kazakova OB. New Dipterocarpol-Based Molecules with α-Glucosidase Inhibitory and Hypoglycemic Activity. Chembiochem 2024; 25:e202300716. [PMID: 37990648 DOI: 10.1002/cbic.202300716] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 11/07/2023] [Accepted: 11/21/2023] [Indexed: 11/23/2023]
Abstract
Dammarane triterpenoids are affordable and bioactive natural metabolites with great structural potential, which makes them attractive sources for drug development. The aim of the study was to investigate the potency of new dipterocarpol derivatives for the treatment of diabetes. Two dammaranes (dipterocarpol and its 20(24)-diene derivative) were modified by a Claisen-Schmidt aldol condensation to afford C2(E)-arylidenes in good yields. The majority of the synthesized compounds exhibited an excellent-to-moderate inhibitory effect toward α-glucosidase (from S. saccharomyces), among them eight compounds showed IC50 values less than 10 μM. 3-Oxo-dammarane-2(E)-benzylidenes (holding p-hydroxy- 3 l and p-carbonyl- 3 m substituents) demonstrated the most potent α-glucosidase inhibition with IC50 0.753 and 0.204 μM, being 232- and 857-times more active than acarbose (IC50 174.90 μM), and a high level of NO inhibition in Raw 264.7 cells with IC50 of 1.75 and 4.57 μM, respectively. An in vivo testing of compound 3 m (in a dose of 20 mg/kg) on a model of streptozotocin-induced T1DM in rats showed a pronounced hypoglycemic activity, the ability to reduce effectively the processes of lipid peroxidation in liver tissue and decrease the excretion of glucose and pyruvic acid in the urine. Compound 3 m reduced the death of diabetic rats and preserved their motor activity.
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Affiliation(s)
- Irina E Smirnova
- Ufa Institute of Chemistry, UFRC RAS, 71, pr. Oktyabrya, Ufa, 450054, Russian Federation
| | - Zarema I Galimova
- Ufa Institute of Chemistry, UFRC RAS, 71, pr. Oktyabrya, Ufa, 450054, Russian Federation
| | - Tatyana A Sapozhnikova
- Ufa Institute of Chemistry, UFRC RAS, 71, pr. Oktyabrya, Ufa, 450054, Russian Federation
| | | | - Thu Ha Nguyen Thi
- Institute of Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Str., Cau Giay Dist., Hanoi, Vietnam
| | - Oxana B Kazakova
- Ufa Institute of Chemistry, UFRC RAS, 71, pr. Oktyabrya, Ufa, 450054, Russian Federation
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Khusnutdinova EF, Petrova AV, Kazakova OB. Antiviral potency of lupane and oleanane alkynyl-derivatives against human cytomegalovirus and papillomavirus. J Antibiot (Tokyo) 2024; 77:50-56. [PMID: 37935823 DOI: 10.1038/s41429-023-00672-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 09/26/2023] [Accepted: 10/03/2023] [Indexed: 11/09/2023]
Abstract
A library of 18 structurally diverse semisynthetic lupane, oleanane, and ursane types triterpenoids, including C19- or C28-(1,2,3-triazolyl)- and aminomethylated derivatives obtained by the «click» reaction with various aromatic and sugar azides or by Mannich reaction with secondary amines, were tested for antiviral activity against HCMV, HSV-1, and HPV-11 types. C28-Triazolyl-derivative with a benzyl substituent of 2,3-indolo-oleanolic acid was the most active against the HCMV virus with EC50 < 0.05 (SI > 81). Lupane 3,28-diacetoxy-triazolyl derivatives with phenyl- and fluorophenyl-fragments possess the highest activity among all screened compounds toward HPV-11 type virus with EC50 values of 2.97 µM and 1.20 μM, SI90 values of 28 and >125, respectively. One can see that modification of triterpenic alkynes to Mannich bases was more efficient in increasing an activity against HSV-1 than their conversion to triazoles.
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Affiliation(s)
- Elmira F Khusnutdinova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation.
| | - Anastasiya V Petrova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
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Petrova A, Kazakova OB, Nazarov IS, Csuk R, Heise NV. Acetylcholinesterase inhibitory activity of modified lupane, oleanane, and ursane A-seco-triterpenoids. Chem Biodivers 2023; 20:e202300185. [PMID: 36960660 DOI: 10.1002/cbdv.202300185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/22/2023] [Accepted: 03/23/2023] [Indexed: 03/25/2023]
Abstract
A series of new lupane, ursane, and oleanane type triterpenic A-seco-derivatives containing bromo-, azido-, alkyne-, 1H-tetrazol-5-yl-, 5-methyloxazol-2-yl-, N-(4-(4-methylpiperazin-1-yl)but-2-yn-1-yl), and a carbonyl group at C2, C24, C28, C30 positions has been synthesized. The bioactivity was evaluated by Ellman's method, and the results showed that most of the compounds displayed moderate acetylcholinesterase inhibitory activities in vitro. Among them, A-seco-derivatives of 28-oxo-allobetuline and betulinic acid with bromo- and azido-groups exhibited the most potent inhibitory activity against AChE. Extra experiments showed methyl 2-cyano-3,4-seco-dibromo- and 2-cyano-3,4-seco-diazido-derivatives of betulinic acid as mixed-type inhibitors, with Ki values as low as Ki = 0.18 µM and Ki = 0.21 µM, respectively.
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Affiliation(s)
- Anastasiya Petrova
- Ufa Institute of Chemistry RAS: FGBUN Ufimskij Institut himii Rossijskoj akademii nauk, Medical Chemistry, 69, pr. Octyabrya, 450054, Ufa, RUSSIAN FEDERATION
| | - Oxana B Kazakova
- Ufa Institute of Chemistry RAS: FGBUN Ufimskij Institut himii Rossijskoj akademii nauk, Medical Chemistry group, pr. Oktyabrya 71, 450054, Ufa, RUSSIAN FEDERATION
| | - Ivan S Nazarov
- Ufa Institute of Chemistry RAS: FGBUN Ufimskij Institut himii Rossijskoj akademii nauk, Laboratory for physico-chemical methods of analysis, pr. Oktyabrya 71, 450054, Ufa, RUSSIAN FEDERATION
| | - René Csuk
- Martin Luther Universität Halle-Wittenberg: Martin-Luther-Universitat Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120, Halle, GERMANY
| | - Niels V Heise
- Martin-Luther-Universitat Halle-Wittenberg, Organic Chemistry, Kurt-Mothes-Str. 2, D-06120, Halle, GERMANY
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Abstract
Among abietane type semisynthetic diterpenoids, a series of quinopimaric and maleopimaric acid derivatives modified at the carboxyl and carbonyl groups, and in ring E were synthesised to obtain new compounds with antimicrobial potency against Mycobacterium tuberculosis H37Rv and key ESKAPE pathogens. It was found that compound 8 exhibited low toxicity to human embryonic kidney cell line HEK-293 (> 32 μg/mL) and showed significant bacteriostatic activity against methicillin-resistant Staphylococcus aureus (MRSA) (MIC ≤ 0.25 µg/mL) and excellent antifungal activity against Cryptococcus neoformans var. grubii (MICs ≤0.25 µg/mL) being ≈4 and ≈30 fold more active than vancomycin and fluconazole. It also showed moderate activity against fungus Candida albicans (MIC ≤ 0.25 µg/mL). Compound 9 inhibited M. tuberculosis H37Rv with MIC of 1.25 µg/mL. The docking studies suggest possible interactions of the leading compounds with the molecular targets.
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Affiliation(s)
- Irina E Smirnova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
| | - Elena V Tret'yakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
| | - Dmitry S Baev
- N.N. Vorozhtsov Novosibirsk Institute of Organic Chemistry of Siberian Branch of Russian Academy of Sciences, Novosibirsk, Russian Federation
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Ufa, Russian Federation
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Tret'yakova EV, Ma X, Kazakova OB, Shtro AA, Petukhova GD, Klabukov AM, Dyatlov DS, Smirnova AA, Xu H, Xiao S. Synthesis and evaluation of diterpenic Mannich bases as antiviral agents against influenza A and SARS-CoV-2. Phytochem Lett 2022; 51:91-96. [PMID: 35935343 PMCID: PMC9343747 DOI: 10.1016/j.phytol.2022.07.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Revised: 07/27/2022] [Accepted: 07/29/2022] [Indexed: 06/15/2023]
Abstract
A chemical library was constructed based on the resin acids (abietic, dehydroabietic, and 12-formylabietic) and its diene adducts (maleopimaric and quinopimaric acid derivatives). The one-pot three-component CuCl-catalyzed aminomethylation of the abietane diterpenoid propargyl derivatives was carried out by formaldehyde and secondary amines (diethylamine, pyrrolidine, morpholine, and homopiperazine). All compounds were tested for cytotoxicity and antiviral activity against influenza virus A/Puerto Rico/8/34 (H1N1) in MDCK cells and SARS-CoV-2 pseudovirus in BHK-21-hACE2 cells. Among 21 tested compounds, six derivatives demonstrated a selectivity index (SI) higher than 10, and their IC50 values ranged from 0.19 to 5.0 μM. Moreover, two derivatives exhibited potent anti-SARS-CoV-2 infection activity. The antiviral activity and toxicity strongly depended on the nature of the diterpene core and heterocyclic substituent. Compounds 12 and 21 bearing pyrrolidine moieties demonstrated the highest virus-inhibiting activity with SIs of 128.6 and 146.8, respectively, and appeared to be most effective when added at the time points 0-10 and 1-10 h of the viral life cycle. Molecular docking and dynamics modeling were adopted to investigate the binding mode of compound 12 into the binding pocket of influenza A virus M2 protein. Compound 9 with a pyrrolidine group at C20 of 17-formylabietic acid was a promising anti-SARS-CoV-2 agent with an EC50 of 10.97 µM and a good SI value > 18.2. Collectively, our data suggested the potency of diterpenic Mannich bases as effective anti-influenza and anti-COVID-19 compounds.
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Affiliation(s)
- Elena V Tret'yakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russia
| | - Xinyuan Ma
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russia
| | - Anna A Shtro
- Smorodintsev Research Institute of Influenza, 15/17 Prof. Popova St., St. Petersburg 197376, Russia
| | - Galina D Petukhova
- Smorodintsev Research Institute of Influenza, 15/17 Prof. Popova St., St. Petersburg 197376, Russia
| | - Artem M Klabukov
- Smorodintsev Research Institute of Influenza, 15/17 Prof. Popova St., St. Petersburg 197376, Russia
| | - Danil S Dyatlov
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russia
| | - Anna A Smirnova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russia
| | - Huan Xu
- Institute of Chemical Biology, Shenzhen Bay Laboratory, Shenzhen 518132, China
| | - Sulong Xiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
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Giniyatullina GV, Petrova AV, Mustafin AG, Zileeva ZR, Kuzmina US, Vakhitova YV, Kazakova OB. Synthesis and Promising Cytotoxic Activity of Betulonic Acid Modified Derivatives. ChemistrySelect 2021. [DOI: 10.1002/slct.202101687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
| | | | - Akhat G. Mustafin
- Ufa Institute of Chemistry UFRC RAS Ufa 71 pr. Oktyabrya 450054 Russian Federation
| | - Zulfia R. Zileeva
- Institute of Biochemistry and Genetics UFRC RAS Ufa 71 pr. Oktyabrya 450054 Russian Federation
| | - Ulyana Sh. Kuzmina
- Institute of Biochemistry and Genetics UFRC RAS Ufa 71 pr. Oktyabrya 450054 Russian Federation
| | - Yulia V. Vakhitova
- Institute of Biochemistry and Genetics UFRC RAS Ufa 71 pr. Oktyabrya 450054 Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry UFRC RAS Ufa 71 pr. Oktyabrya 450054 Russian Federation
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Kazakova OB, Medvedeva NI, Smirnova IE, Lopatina TV, Veselovsky AV. The Introduction of Hydrazone, Hydrazide, or Azepane Moieties to the Triterpenoid Core Enhances an Activity Against M. tuberculosis. Med Chem 2021; 17:134-145. [PMID: 31939731 DOI: 10.2174/1573406416666200115161700] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2019] [Revised: 07/18/2019] [Accepted: 10/14/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Triterpenoids exhibit a wide spectrum of antimicrobial activity. OBJECTIVE The objective of this study was to synthesize a series of nitrogen derivatives based on lupane, oleanane, and ursane triterpenoids with high antitubercular activity. METHODS Isonicotinoylhydrazones were prepared via the reaction of 3-oxotriterpenic acids or betulonic aldehyde with isoniazid (INH) in yields of 54-72%. N-Acylation of betulonic or azepanobetulinic acids led to lupane C28 hydrazides and dihydrazides. The derivatives were evaluated for their in vitro antimycobacterial activities against Mycobacterium tuberculosis (MTB) H37RV and single-drug resistance (SDR)-TB in the National Institute of Allergy and Infectious Diseases, USA. Molecular docking was performed to evaluate the possible binding modes of investigated compounds in the active site of Diterpene synthase (Rv3378c). RESULTS The obtained compounds are represented by C3 or C28 conjugates with hydrazine hydrate or INH. Some compounds demonstrated from high minimum inhibitory concentration (MIC ≤ 10 μg/mL) to excellent (MICs from 0.19 to 1.25 μg/mL) activity against MTB H37RV. Two lupane conjugates with INH were the leading compounds against MTB H37RV and some SDR-strains with MICs ranged from 0.19 to 1.70 μg/mL. Molecular docking of active compounds to diterpene synthase showed that these moieties accommodate the active site of the enzyme. CONCLUSION It was revealed that the conjugation of lupanes with INH at C3 is more effective than at C28 and the lupane skeleton is preferable among oleanane and ursane types. The replacement of native hexacarbocyclic A ring to seven-member azepane ring is favorably for inhibition of both MTB H37RV and SDR-strains. These data could possibly mean that the antitubercular activity against INH-resistant strains (INH-R) came from both triterpenoid and isoniazid parts of the hybrid molecules. Azepanobetulin showed the highest activity against both INH-R strains in comparison with other triterpenoids and INH. Thus, the introduction of hydrazone, hydrazide (dihydrazide), or azepane moieties into the triterpenoid core is a promising way for the development of new anti-tubercular agents.
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Affiliation(s)
- Oxana B Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospekt Oktyabrya, 450054, Ufa, Russian Federation
| | - Natalya I Medvedeva
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospekt Oktyabrya, 450054, Ufa, Russian Federation
| | - Irina E Smirnova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospekt Oktyabrya, 450054, Ufa, Russian Federation
| | - Tatyana V Lopatina
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 Prospekt Oktyabrya, 450054, Ufa, Russian Federation
| | - Alexander V Veselovsky
- Institute of Biomedical Chemistry, 10 Pogodinskaya str., 119121, Moscow, Russian Federation
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Kazakova OB, Giniyatullina GV, Mustafin AG, Babkov DA, Sokolova EV, Spasov AA. Evaluation of Cytotoxicity and α-Glucosidase Inhibitory Activity of Amide and Polyamino-Derivatives of Lupane Triterpenoids. Molecules 2020; 25:E4833. [PMID: 33092246 PMCID: PMC7587962 DOI: 10.3390/molecules25204833] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 10/19/2020] [Accepted: 10/19/2020] [Indexed: 12/17/2022] Open
Abstract
A series of two new and twenty earlier synthesized branched extra-amino-triterpenoids obtained by the direct coupling of betulinic/betulonic acids with polymethylenpolyamines, or by the cyanoethylation of lupane type alcohols, oximes, amines, and amides with the following reduction were evaluated for cytotoxicity toward the NCI-60 cancer cell line panel, α-glucosidase inhibitory, and antimicrobial activities. Lupane carboxamides, conjugates with diaminopropane, triethylenetetramine, and branched C3-cyanoethylated polyamine methyl betulonate showed high cytotoxic activity against most of the tested cancer cell lines with GI50 that ranged from 1.09 to 54.40 µM. Betulonic acid C28-conjugate with triethylenetetramine and C3,C28-bis-aminopropoxy-betulin were found to be potent micromolar inhibitors of yeast α-glucosidase and to simultaneously inhibit the endosomal reticulum α-glucosidase, rendering them as potentially capable to suppress tumor invasiveness and neovascularization, in addition to the direct cytotoxicity. Plausible mechanisms of cytotoxic action and underlying disrupted molecular pathways were elucidated with CellMinner pattern analysis and Gene Ontology enrichment analysis, according to which the lead compounds exert multi-target antiproliferative activity associated with oxidative stress induction and chromatin structure alteration. The betulonic acid diethylentriamine conjugate showed partial activity against methicillin-resistant S. aureus and the fungi C. neoformans. These results show that triterpenic polyamines, being analogs of steroidal squalamine and trodusquemine, are important substances for the search of new drugs with anticancer, antidiabetic, and antimicrobial activities.
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Affiliation(s)
- Oxana B. Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 pr. Oktyabrya, 450054 Ufa, Russia; (G.V.G.); (A.G.M.)
| | - Gul’nara V. Giniyatullina
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 pr. Oktyabrya, 450054 Ufa, Russia; (G.V.G.); (A.G.M.)
| | - Akhat G. Mustafin
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, 71 pr. Oktyabrya, 450054 Ufa, Russia; (G.V.G.); (A.G.M.)
| | - Denis A. Babkov
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia; (D.A.B.); (E.V.S.)
| | - Elena V. Sokolova
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia; (D.A.B.); (E.V.S.)
| | - Alexander A. Spasov
- Laboratory of Metabotropic Drugs, Scientific Center for Innovative Drugs, Volgograd State Medical University, Novorossiyskaya st. 39, 400087 Volgograd, Russia; (D.A.B.); (E.V.S.)
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Kazakova OB, Lopatina TV, Baikova IP, Zileeva ZR, Vakhitova YV, Suponitsky KY. Synthesis, evaluation of cytotoxicity, and antimicrobial activity of A-azepano- and A-seco-3-amino-C28-aminolupanes. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02577-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Smirnova IE, Kazakova OB, Loesche A, Hoenke S, Csuk R. Evaluation of cholinesterase inhibitory activity and cytotoxicity of synthetic derivatives of di- and triterpene metabolites from Pinus silvestris and Dipterocarpus alatus resins. Med Chem Res 2020. [DOI: 10.1007/s00044-020-02566-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kazakova OB, Khusnutdinova EF, Petrova AV, Yamansarov EY, Lobov AN, Fedorova AA, Suponitsky KY. Diastereoselective Synthesis of Triterpenoid 1,2,4-Trioxolanes by Griesbaum Co-ozonolysis. J Nat Prod 2019; 82:2550-2558. [PMID: 31490689 DOI: 10.1021/acs.jnatprod.9b00393] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Diastereoselective synthesis of triterpenoid 1,2,4-trioxolanes by Griesbaum co-ozonolysis was shown for the first time. Ozonolysis of 2-methoxyoximes (syn-anti-isomers mixture) of allobetulin or methyl oleanoate with CF3-ketones resulted in asymmetrical spiro-1,2,4-trioxolanes as mixtures of diastereomers in yields up to 80-85%. The configuration of the spiro-C-2 center of individual ozonides was determined by 2D NMR spectra and X-ray crystallographic analysis. The products of ozonolysis of triterpenoid 3-methoxyoximes were mixtures of regioisomeric N-methoxylactams. Thus, the fundamental differences in the oxidation of homologous triterpenoid 2- or 3-methoxyoximes with ozone have been established. These results may afford a new stage in the development of the Griesbaum method as applied to natural compounds and biologically active peroxides.
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Affiliation(s)
- Oxana B Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences , Ufa , 450054 , Russian Federation
| | - Elmira F Khusnutdinova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences , Ufa , 450054 , Russian Federation
| | - Anastasiya V Petrova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences , Ufa , 450054 , Russian Federation
| | - Emil Yu Yamansarov
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences , Ufa , 450054 , Russian Federation
| | - Alexander N Lobov
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences , Ufa , 450054 , Russian Federation
| | - Alexandra A Fedorova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences , Ufa , 450054 , Russian Federation
| | - Kyrill Yu Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences , Moscow 119991 , Russian Federation
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14
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Giniyatullina GV, Kazakova OB, Baikova IP, Yamansarov EY, Osterman IA, Komarova ES, Skvortsov DA, Saltikova IV, Majouga AG, Ivanenkov YA. Synthesis and Сytotoxicity of A-Azepanobetulinic Acid N-Methyl-Piperazinylamide. Nat Prod Commun 2019. [DOI: 10.1177/1934578x19860670] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
The synthesis of A-azepanobetulinic acid N-methylpiperazinylamide was performed through a series of transformations (oximation, Beckmann rearrangement, reduction) of previously synthesized betulonic acid N-methylpiperazinylamide. In vitro cytotoxic activity was detected for the obtained compound against a number of cancer cell lines, and its potential was revealed as an antibacterial agent.
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Affiliation(s)
- Gulnara V. Giniyatullina
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Russian Federation
| | - Irina P. Baikova
- Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Sciences, Russian Federation
| | | | - Ilya A. Osterman
- Chemistry Department, Lomonosov Moscow State University, Russian Federation
- Skolkovo Institute of Science and Technology, Russian Federation
- National Research University Higher School of Economics, Moscow, Russian Federation
| | - Ekaterina S. Komarova
- Chemistry Department, Lomonosov Moscow State University, Russian Federation
- Skolkovo Institute of Science and Technology, Russian Federation
| | | | - Irina V. Saltikova
- Chemistry Department, Lomonosov Moscow State University, Russian Federation
| | - Alexander G. Majouga
- Chemistry Department, Lomonosov Moscow State University, Russian Federation
- National University of Science and Technology MISiS, Moscow, Russian Federation
- Dmitry Mendeleev University of Chemical Technology of Russia, Moscow, Russian Federation
| | - Yan A. Ivanenkov
- Institute of Biochemistry and Genetics Russian Academy of Science (IBG RAS) Ufa Scientific Centre, Russian Federation
- Moscow Institute of Physics and Technology (State University), Dolgoprudny, Russian Federation
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15
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Khusnutdinova EF, Petrova AV, Thu HNT, Tu ALT, Thanh TN, Thi CB, Babkov DA, Kazakova OB. Structural modifications of 2,3-indolobetulinic acid: Design and synthesis of highly potent α-glucosidase inhibitors. Bioorg Chem 2019; 88:102957. [DOI: 10.1016/j.bioorg.2019.102957] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2019] [Revised: 04/17/2019] [Accepted: 04/28/2019] [Indexed: 12/14/2022]
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16
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Khusnutdinova EF, Kazakova OB, Lobov AN, Kukovinets OS, Suponitsky KY, Meyers CB, Prichard MN. Synthesis of A-ring quinolones, nine-membered oxolactams and spiroindoles by oxidative transformations of 2,3-indolotriterpenoids. Org Biomol Chem 2019; 17:585-597. [PMID: 30574983 DOI: 10.1039/c8ob02624f] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This paper describes an access to new nitrogen-containing heterocyclic triterpenoids by the reaction of 2,3-indolotriterpenoids with ozone and dimethyldioxirane. The oxidation of indolo-fused 28-oxo-allobetulin or methyl platanoate with ozone led to a mixture of a quinolone as the major product and a nine-membered 2,3-seco-2-oxolactam and three different types of spiroindoles as byproducts. The formation of quinolone and 2,3-seco-2-oxolactam derivatives could be explained by the standard 1,3-dipolar cycloaddition of ozone to the C2(3)-double bond of the triterpene core similar to the products observed in the ozonolysis of indoles in the Witkop-Winterfeldt oxidation (WWO). The formation of spiroindoles was unexpected and could be explained through the 1,2-cycloaddition of ozone to the C2(3)-double bond with consecutive intramolecular rearrangements of the 2,3-epoxy-intermediate. These spiroindoles seem to be novel structures observed in the WWO reaction. The formation of only two isomeric triterpene spiroindolinones was achieved by the oxidation of 2,3-indolo-28-oxo-allobetulin with dimethyldioxirane that could be explained by the rearrangement of the 2,3-epoxy-intermediate. 19β,28-Epoxy-18α-olean-28-oxo-2-nor-2,3-4'(1H)-quinolone was the most active against HPV-11 with EC50 0.45 μM and SI50 322 in a primary assay and SI90 < 10 against HPV-16 in a secondary assay. The oxidative transformations of indolotriterpenoids have great potential for further modifications towards the preparation of new biologically active compounds.
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Affiliation(s)
- Elmira F Khusnutdinova
- Ufa Institute of Chemistry - Subdivision of the Ufa Federal Research Centre of Russian Academy of Sciences, Ufa 450054, Russian Federation.
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Abstract
Fifty-one derivatives of lupeol, betulin, betulonic and acanthochlamic acids modified at C3, C20 and C28 of the lupane core including four new ones (37, 49 –51) and forty-seven previously synthesized derivatives (1 – 36, 36 – 48) were screened for their in vitro anti-influenza type A (H1N1, H3N2 and H5N1) activity at the NIAID. The selectivity index (SI) against Flu A for tested triterpenoids ranged from > 20 to 0. Betulonic acid 2-aminopyridinylamide was a leader being active against H1N1, H3N2 and H5N1 with SI > 20, 1.8 and 5.3, respectively. The betulonic acid methoxy- and nitro-substituted benzalhydrazides showed selectivity only against H5N1, while lupeol and 3-oximino-betulonic acid benzalhydrazides were active against three types of Flu A. A-seco-aminoderivatives were more effective than the initial acanthochlamic acid against H1N1, but practically inactive against H3N2, with bis- N-methylpiperazinylamide as a leader in this series. Triterpenoids with a long-chain substituent at C17 containing amide or hydrazide bonds with aromatic or heterocyclic fragments exert positive influence on the activity.
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Affiliation(s)
- Irina E. Smirnova
- Ufa Institute of Chemistry - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054, Ufa, Prospekt Oktyabrya 71, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry - Subdivision of the Ufa Federal Research Centre of the Russian Academy of Sciences, 450054, Ufa, Prospekt Oktyabrya 71, Russian Federation
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18
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Khusnutdinova EF, Petrova AV, Kukovinets OS, Kazakova OB. Synthesis and Cytotoxicity of 28- N-Propargylaminoalkylated 2,3-Indolotriterpenic acids. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300603] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
A new series of propargylaminoalkyl derivatives with N-methylpiperazine and morpholine fragments was obtained by modification of the carboxyl group of [3,2b]-indolotriterpenic acids ( N-propargylation, Cu(I) catalyzed Mannich reaction). Cytotoxicity assays demonstrated that oleanane-type conjugate with N-methylpiperazine exhibited high antitumor activity against leukemia cell line SR and non-small cell lung cancer cell line NCI-H460.
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Affiliation(s)
- Elmira F. Khusnutdinova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, RussianFederation
| | - Anastasiya V. Petrova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, RussianFederation
- Bashkir State University, 32, Zaki Validi St., 450076, Ufa, Russian Federation
| | - Olga S. Kukovinets
- Bashkir State University, 32, Zaki Validi St., 450076, Ufa, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, RussianFederation
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Smirnova IE, Khusnutdinova EF, Lobov AN, Kazakova OB. Synthesis of new A-conjugated Quinolone and Spiroindole Dammaranes by the Ozonolysis of 2,3-Indolodipterocarpol. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
An one-step and efficient access to the new dammarane A-quinolones by ozonolysis of 2,3-indolodipterocarpol at 0°C through the 1,3-dipolar cycloaddition of ozone to the C2-C3 double bond of the triterpenoid core is reported. In the case of oxidation in AcOH, two spiroindoles were identified as a result of 1,2-cycloaddition of ozone to the C2-C3 double bond with following intramolecular rearrangements of 2,3-epoxy-intermediate. The structures of four new compounds were established by 1H, 13C NMR, COSY, NOSY, HMBC and HSQC analyses.
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Affiliation(s)
- Irina E. Smirnova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Elmira F. Khusnutdinova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Alexander N. Lobov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
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20
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Yamansarov EY, Khusnutdinova EF, Lobov AN, Kazakova OB, Suponitsky KY. Oxidation of 3β-Acetoxy-21β-acetyl-20β,28-epoxy-18α,19βH-ursane into Novel gem-Chloronitro- and 1,2,4,5-tetraoxane derivatives. Nat Prod Commun 2018. [DOI: 10.1177/1934578x1801300311] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The first oxidative transformations of 3β-acetoxy-21β-acetyl-20β,28-epoxy-18α,19β H-ursane at the 21β-acetyl reaction center were performed. Ursane-type 1,2,4,5-tetraoxanes were synthesized by acid-catalyzed peroxy-condensation with cyclohexanone bis-hydroperoxide, and oxidation of the C(28)H2 group to C(28)=O was also observed. The ursane-bearing exogenous oximino-moiety was formed as a mixture of syn- and anti-isomers (1:1). Oxidative chlorination of oxime via NaCl/oxone led to the diastereomeric mixture of novel ( R) and ( S)- gem-chloronitro-derivatives (1:1). The stereochemistry of oximino- and gem-chloronitro- derivatives was established through X-ray analysis and NMR spectroscopy.
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Affiliation(s)
- Emil Yu. Yamansarov
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - El'mira F. Khusnutdinova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Alexander N. Lobov
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Kirill Yu. Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova St, V-334, 119991, GSP-1, Moscow, Russian Federation
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21
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Yamansarov EY, Kazakov DV, Medvedeva NI, Khusnutdinova EF, Kazakova OB, Legostaeva YV, Ishmuratov GY, Huong LM, Ha TTH, Huong DT, Suponitsky KY. Synthesis and antimalarial activity of 3'-trifluoromethylated 1,2,4-trioxolanes and 1,2,4,5-tetraoxane based on deoxycholic acid. Steroids 2018; 129:17-23. [PMID: 29180289 DOI: 10.1016/j.steroids.2017.11.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/09/2017] [Accepted: 11/15/2017] [Indexed: 10/18/2022]
Abstract
A series of new steroidal peroxides - 3'-trifluoromethylated 1,2,4-trioxolanes and 1,2,4,5-tetraoxanes based on deoxycholic acid were prepared via the reactions of the Griesbaum coozonolysis and peroxycondensation, respectively. 1,2,4-Trioxolanes were synthesized by the interaction of methyl O-methyl-3-oximino-12α-acetoxy-deoxycholate with CF3C(O)CH3 or CF3C(O)Ph and O3 as the mixtures of four possible stereoisomers at ratios of 1:2:2:1 and in yields of 50% and 38%, respectively. The major diastereomer of methyl 12α-acetoxy-5β-cholan-24-oate-3-spiro-5'-(3'-methyl-3'-trifluoromethyl-1',2',4'-trioxolane) was isolated via crystallization of a mixture of stereoisomers from hexane and its (3S,3'R)-configuration was determined using X-ray crystallographic analysis. Peroxycondensation of methyl 3-bishydroperoxy-12α-acetoxy-deoxycholate with CF3C(O)CH3 or acetone led to 1,2,4,5-tetraoxanes in yields of 44% and 37%, respectively. Antimalarial activity of these new steroidal peroxides was evaluated in vitro against the chloroquine-sensitive (CQS) T96 and chloroquine-resistant (CQR) K1 strains of Plasmodium falciparum. Deoxycholic acid 3'-trifluoromethylated 1,2,4,5-tetraoxane demonstrated a good IC50 value against CQR-strain (IC50 (K1) = 7.6 nM) of P. falciparum. Tetraoxane with the acetone subunit demonstrated the best results among all tested peroxides with an IC50 value of 3 nM against the CQ-resistant K1 strain. In general, 1,2,4-trioxolanes of deoxycholic acid are less active than 1,2,4,5-tetraoxanes.
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Affiliation(s)
- Emil Yu Yamansarov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Dmitri V Kazakov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation; Noncommercial Partnership "Center for Diagnostic of Nanostructures and Nanomaterials", 4 ul. Kosygina, 119991 Moscow, Russian Federation
| | - Natal'ya I Medvedeva
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Elmira F Khusnutdinova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Oxana B Kazakova
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation.
| | - Yuliya V Legostaeva
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Gumer Yu Ishmuratov
- Ufa Institute of Chemistry of the Russian Academy of Sciences, 71 prospect Oktyabrya, 450054 Ufa, Russian Federation
| | - Le Mai Huong
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Tran Thi Hong Ha
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Do Thi Huong
- Institute of Natural Products Chemistry, Vietnamese Academy of Science and Technology, 18 Hoang Quoc Viet Street, Cau Giay Dist., Hanoi, Viet Nam
| | - Kyrill Yu Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, 119991 Moscow, Russian Federation
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Khusnutdinova EF, Smirnova IE, Kazakova OB, Petrova AV, Ha NTT, Viet DQ. Synthesis and evaluation of 2,3-indolotriterpenoids as new α-glucosidase inhibitors. Med Chem Res 2017. [DOI: 10.1007/s00044-017-1972-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Yamansarov EY, Kazakova OB, Medvedeva NI, Lobov AN, Suponitsky KY. Synthesis of triterpenoid-based ring-A azepanone and gem-3-nitro-3-chloro- derivatives by ozonolysis of 3-oximino-28-oxoallobetulin under normal and acidic solvolysis conditions. Tetrahedron 2017. [DOI: 10.1016/j.tet.2017.05.094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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24
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Khusnutdinova EF, Medvedeva NI, Kazakov DV, Kukovinets OS, Lobov AN, Suponitsky KY, Kazakova OB. Stereospecific Oxidation of Diacetoxyheterobetulin with Ozone and Dimethyldioxirane. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100407] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Stereospecific oxidation of diacetoxyheterobetulin with ozone and dimethyldioxirane led to 3β,28-diacetoxy-18α,19pH-urs-20α,21α-epoxide with yields of 79% and 87%, respectively. Oxidation with ozone was not selective and gave two minor products containing 21α-hydroxy-20(30)-ene and 21α-hydroxy-20β,28-epoxy- fragments in ring E. The structures of 3β,28-diacetoxy-18α,19pH-urs-20α,21α-epoxide and 3β-diacetoxy-21α-hydroxy-20β,28-epoxy-18α,19βH-ursane were confirmed by X-ray analysis for the first time.
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Affiliation(s)
- El'mira F. Khusnutdinova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Natalya I. Medvedeva
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Dmitri V. Kazakov
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Olga S. Kukovinets
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Alexander N. Lobov
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Kirill Yu. Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilova St, V-334, 119991, GSP–1, Moscow, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
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25
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Khusnutdinova EF, Smirnova IE, Giniyatullina GV, Medvedeva NI, Yamansarov EY, Kazakov DV, Kazakova OB, Linh PT, Viet DQ, Huong DT. Inhibition of Alpha-Glucosidase by Synthetic Derivatives of Lupane, Oleanane, Ursane and Dammarane Triterpenoids. Nat Prod Commun 2016; 11:33-5. [PMID: 26996014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/05/2023] Open
Abstract
A variety of new and earlier synthesized lupane, oleanane, ursane and dammarane triterpenoids have been investigated for their inhibitory activity against α-glucosidase. 2,3-Indole-21 β-acetyl-20β,28-epoxy-18α,19βH-ursane and 3-oxo-3A-homo-3a-aza-20(S)-hydroxydammar-24(25)-ene were synthesized for the first time. The compounds 3, 4, 8-11 and 14 demonstrated strong in vitro inhibitory activity towards α-glucosidase with IC₅₀ values of 37.5-115.1 µM. 3-Deoxy-3a-homo-3a-aza-28-cinnamoyloxy-20(29)-lupene, with an IC₅₀ of 6.67 µM was 60-fold more active than the market drug acarbose.
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Khusnutdinova EF, Medvedeva NI, Kazakov DV, Kukovinets OS, Lobov AN, Suponitsky KY, Kazakova OB. An efficient synthesis of moronic and heterobetulonic acids from allobetulin. Tetrahedron Lett 2016. [DOI: 10.1016/j.tetlet.2015.11.086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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27
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Khusnutdinova EF, Smirnova IE, Giniyatullina GV, Medvedeva NI, Yamansarov EY, Kazakov DV, Kazakova OB, Linh PT, Viet DQ, Huong DT. Inhibition of Alpha-Glucosidase by Synthetic Derivatives of Lupane, Oleanane, Ursane and Dammarane Triterpenoids. Nat Prod Commun 2016. [DOI: 10.1177/1934578x1601100112] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
A variety of new and earlier synthesized lupane, oleanane, ursane and dammarane triterpenoids have been investigated for their inhibitory activity against α-glucosidase. 2,3-Indole-21β-acetyl-20β,28-epoxy-18α,19βH-ursane and 3-oxo-3A-homo-3a-aza-20( S)-hydroxydammar-24(25)-ene were synthesized for the first time. The compounds 3, 4, 8–11 and 14 demonstrated strong in vitro inhibitory activity towards α-glucosidase with IC50 values of 37.5–115.1 μM. 3-Deoxy-3a-homo-3a-aza-28-cinnamoyloxy-20(29)-lupene, with an IC50 of 6.67 μM was 60-fold more active than the market drug acarbose.
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Affiliation(s)
- El'mira F. Khusnutdinova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Irina E. Smirnova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Gul'nara V. Giniyatullina
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Natal'ya I. Medvedeva
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Emil Yu. Yamansarov
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Dmitri V. Kazakov
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Oxana B. Kazakova
- Ufa Institute of Chemistry, Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Pham T. Linh
- Institute of Chemistry Vietnamese Academy of Sciences, 18 Hoang Quoc Viet St., CauGiay Dist., Hanoi, Vietnam
| | - Do Quoc Viet
- Institute of Chemistry Vietnamese Academy of Sciences, 18 Hoang Quoc Viet St., CauGiay Dist., Hanoi, Vietnam
| | - DoThi Thu Huong
- Institute of Chemistry Vietnamese Academy of Sciences, 18 Hoang Quoc Viet St., CauGiay Dist., Hanoi, Vietnam
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Kazakova OB, Medvedeva NI, Lopatina TV, Apryshko GN, Pugacheva RB, Yavorskaya NP, Golubeva IS, Tolstikov GA. [Synthesis and Anticancer Activity of Betulonic Acid Imidazolides]. Bioorg Khim 2015; 41:346-56. [PMID: 26502611 DOI: 10.1134/s1068162015020065] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
Synthesis of lupane C28-imidazolides, contained 3-oxo-, 3-oximino- and 2-cyano-2,3-seco-4(23)-en-frag ments in cycle A was carried out. The most antitumor activity at. in vitro testing showed 3-oximino-lup- 20(29)-en-28-yl-1H-imidazole-1-carboxylate; which inhibited the growth or induced apoptosis of non-small lung cancer, colon cancer, breast cancer, CNS cancer, ovarian cancer, prostate cancer, leucosis, melanoma cells. In experiments in mice its moderate antitumor activity against grafted breast adenocarcinoma Ca 755 and adenocarcinima of colon was observed.
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Kazakova OB, Giniiatullina GV, Medvedeva NI, Lopatina TV, Baĭkova IP, Tolstikov GA, Apryshko GN. [Synthesis and cytotoxicity of triterpenoid seven members cyclic amines]. Bioorg Khim 2015; 40:217-25. [PMID: 25895342 DOI: 10.1134/s106816201402006x] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Synthesis of 3-deoxy-3a-homo-3a-aza-derivatives of betulin and erythrodiol from betulonic and oleanonic acids was carried out. The most antineoplastic activity with a wide range of action at in vitro testing showed 3-deoxy-3a-homo-3a-aza-28-hydroxy-12(13)-oleanene, which by results of profound studying could be recommended for in vivo investigation. Its modification in the C28 position by introduction of amethoxycinnamoyl fragment led to a loss of antineoplastic activity. 3-Deoxy-3a-homo-3a-aza-derivatives of betulin (3-(aminopropyl)-, 28-(2-carboxyethyl)carboxy-, and 28-cinnamoyloxy-) showed moderate antineoplastic activity in the case of Colon Cancer, Breast Cancer and Leukemia cell lines.
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Tretyakova EV, Smirnova IE, Kazakova OB, Tolstikov GA, Yavorskaya NP, Golubeva IS, Pugacheva RB, Apryshko GN, Poroikov VV. Synthesis and anticancer activity of quinopimaric and maleopimaric acids’ derivatives. Bioorg Med Chem 2014; 22:6481-9. [PMID: 25440729 DOI: 10.1016/j.bmc.2014.09.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 09/10/2014] [Accepted: 09/12/2014] [Indexed: 11/16/2022]
Abstract
A series of quinopimaric and maleopimaric acids’ derivatives modified in the E-ring, at the carbonyl- and carboxyl-groups were synthesized and their in vitro cytotoxic activity was evaluated at the National Cancer Institute, USA. Methyl esters of dihydroquinopimaric, 1a,4a-dehydroquinopimaric, 2,3-epoxyquinopimaric, 1-ethylenketal-dihydroquinopimaric, 1-ethylenketal-4-hydroxyiminodihydroquinopimaric acids displayed an activity on renal cancer, leukemia, colon cancer and breast cancer cell lines in concentration 10(−5) M. Methyl 1,4-dihydroxyiminodihydroquinopimarate showed both a potent and broad spectrum of cytotoxic activity against NSC lung cancer, colon cancer, breast cancer, renal cancer and leukemia and revealed in vivo antineoplastic activity towards mouse solid transplantable mammary carcinoma Ca755 and colon adenocarcinoma AKATOL. The information about antineoplastic activity of the studied quinopimaric and maleopimaric acids’ derivatives will be used for hit to lead optimization in these chemical series.
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Smirnova IE, Kazakova OB, Viet DQ, Thuc NT, Linh PT, Huong DTT. Synthesis and evaluation of 29-norcycloartane triterpenoids as α-glucosidase inhibitors. Med Chem Res 2014. [DOI: 10.1007/s00044-014-1292-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Smirnova IE, Kazakova OB, Huong DTT, Minnibaeva EM, Lobov AN, Suponitsky KY. One-pot synthesis of hollongdione from dipterocarpol. Nat Prod Commun 2014; 9:1417-1420. [PMID: 25522528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023] Open
Abstract
A one-pot synthesis of a hybrid triterpenoid-steroid molecule, hollongdione (22,23,24,25,26,27-hexanordammar-3,20-dion), was achieved in a yield of 89%, based on the selective dehydration of dipterocarpol following ozonolysis. The structure of hollongdione was confirmed by X-ray analysis for the first time. Dammar-20(22),24(25)-dien inhibited the growth of Mycobacterium tuberculosis (strain H37Rv) in vitro with a MIC of 50 μg/mL.
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Abstract
A one-pot synthesis of a hybrid triterpenoid-steroid molecule, hollongdione (22,23,24,25,26,27-hexanordammar-3,20-dion), was achieved in a yield of 89%, based on the selective dehydration of dipterocarpol following ozonolysis. The structure of hollongdione was confirmed by X-ray analysis for the first time. Dammar-20(22),24(25)-dien inhibited the growth of Mycobacterium tuberculosis (strain H37Rv) in vitro with a MIC of 50 μg/mL.
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Affiliation(s)
- Irina E. Smirnova
- Institute of Organic Chemistry, Ufa Research Center of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Oxana B. Kazakova
- Institute of Organic Chemistry, Ufa Research Center of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Do Thi Thu Huong
- Institute of Chemistry Vietnamese Academy of Sciences, 18 Hoang Quoc Viet St., Cau Giay Dist., Hanoi, Vietnam
| | - El'za M. Minnibaeva
- Institute of Organic Chemistry, Ufa Research Center of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Alexandr N. Lobov
- Institute of Organic Chemistry, Ufa Research Center of the Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054, Ufa, Russian Federation
| | - Kiryll Yu. Suponitsky
- A.N. Nesmeyanov Institute of Organoelement Compounds of the Russian Academy of Sciences, 28 Vavilova St, V-334, 119991, GSP-1, Moscow, Russian Federation
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Giniiatullina GV, Kazakova OB, Medvedeva NI, Sorokina IV, Zhukova NA, Tolstikova TG, Tolstikov GA. [Synthesis of aminopropylaminoderivatives of betulinic and oleanolic acids]. ACTA ACUST UNITED AC 2014; 39:369-77. [PMID: 24397036 DOI: 10.7868/s0132342313020061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
On the basis of betulinic and oleanolic acids triterpenoids with different with different amine fragments: (3-aminopropoxy)-, 3-acetyl-(3-aminopropyl)amino-, 6-[bis(3-aminopropyl)amino]hexylamino-, (3-aminopropyl)-4-aminosulfonyl-4-phenylamino- at positions C3 and C28 were synthesized. It is shown that betulonic acid amide with 4,4'-diaminodiphenylsulfonic substituent don't render antitumor effect in mice with transplantable Lewis lung carcinoma, but possess significant anti-inflammatory activity.
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Kazakova OB, Tretyakova EV, Smirnova IE, Nazyrov TI, Kukovinets OS, Tolstikov GA, Suponitskii KY. An efficient oxyfunctionalization of quinopimaric acid derivatives with ozone. Nat Prod Commun 2013; 8:293-296. [PMID: 23678794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
An access to oxyfunctionalized quinopimaric acid derivatives is reported. The ozonolysis of methyl dihydroquinopimarate occurs through 1,2-cycloaddition of ozone to the bridging double bond followed by intermolecular rearrangements and formation of nontrivial 4beta-hydroxy-4alpha,14alpha-epoxy-13(15)-ene derivative 2. The oxidation of methyl furfurilydene dihydroquinopimarate with ozone led to anhydride 5 and unexpected carboxymethyl substituted cyclopentane lactone 6. The structure of compound 6 was confirmed by X-Ray analysis of its methyl ester.
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Affiliation(s)
- Oxana B Kazakova
- Institute of Organic Chemistry, Ufa Research Center of Russian Academy of Sciences, 71 Prospect Oktyabrya, 450054 Ufa, Russian Federation.
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Utkina TM, Kazakova OB, Medvedeva NI, Kartashova OL. [Structural and functional characteristics of betulin derivatives]. Antibiot Khimioter 2011; 56:3-6. [PMID: 22856149] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The effect of betulin derivatives on persistence properties of microorganisms was studied in vitro. It was shown that the antipersistence action of the betulin derivatives depended on their structure and the microbial species. The experimental data on the structure - function relation could be useful in development and synthesis of new agents for therapy of chronic infections associated with persistence of bacterial pathogens in macroorganism.
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Kazakova OB, Tret'iakova EV, Kukovinets OS, Tolstikov GA, Nazyrov TI, Chudov IV, Ismagilova AF. [Synthesis and pharmacological activity of amides and ozonolysis product of maleopimaric acid]. Bioorg Khim 2010; 36:832-840. [PMID: 21317950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The synthesis of a new group of maleopimaric acid amides containing fragments of the methyl esters of amino acids, aliphatic amines, imidazole and N-methylpiperazine was carried out. Ozonolysis of methyl maleopimarate flows through the cleavage of double bond C18(19) and the disclosure of anhydrous cycle with formation of secotriacid. As a result of screening of anti-inflammatory and antiulcer activity of maleopimaric acid derivatives new effective compounds such as methyl esters of maleopimaric acid and product of ozonolysis - diterpenic secotriacid, maleopimaric acid amide with L-leucine were revealed. An important advantage of the compounds studied is the low toxicity and the presence of bidirectional activity in the absence of adverse effects on the animal.
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Kazakova OB, Medvedeva NI, Baĭkova IP, Tolstikov GA, Lopatina TV, Iunusov MS, Zaprutko L. [Synthesis of triterpenoid acylates - an effective reproduction inhibitors of influenza A (H1N1) and papilloma viruses]. Bioorg Khim 2010; 36:841-848. [PMID: 21317951] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The synthesis of a new group of triterpenoid acylates on the basis of oleanolic, glycyrrhetic and ursolic acids and betulin is described. In studying the activity of the synthesized compounds in relation to reproduction of virus pathogens of respiratory infections 28-O-methoxycynnamoylbetulin shows high activity against influenza type A (H1N1) the selectivity index SI > 100. The high activity of 3,28-dinicotinoylbetulin against papilloma virus (strain HPV-11) was detected, the selectivity index SI was 35.
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Kazakova OB, Khusnutdinova ÉF, Tolstikov GA, Suponitskiĭ KI. [Synthesis of new olean-18(19)-ene derivatives from allobetulin]. Bioorg Khim 2010; 36:552-5. [PMID: 20823924 DOI: 10.1134/s1068162010040102] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Effective synthesis of new olean-18(19)-ene triterpenoids based on interaction of allobetulin or its acetate with phosphorous oxychloride in pyridine under reflux is described. The structures of the synthesized 17-chloromethyl-oleane-18(19)-enes have been established with the help of NMR-spectroscopy and X-Ray analysis.
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Kazakova OB, Giniiatullina GV, Tolstikov GA, Medvedeva NI, Utkina TM, Kartashova OL. [Synthesis, modifications, and antimicrobial activity of the methylpiperazinyl amides of triterpenic acids]. Bioorg Khim 2010; 36:416-22. [PMID: 20644598 DOI: 10.1134/s1068162010030155] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
N-Methylpiperazinyl amides of betulinic, platanic, glycyrrhetic, oleanolic, ursolic, and moronic acids were synthesized and modified. Betulin and betulonic acid showed antimicrobial activity against Staphylococcus aureus at a concentration of 90 mg/ml, and betulin manifested a bacteriostatic effect against Klebsiella pneumoniae at a concentration of 60 mg/ml. Among the studied N-methylpiperazinyl amides, the highest activity against S. aureus was observed for a betulonic acid derivative.
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Kazakova OB, Giniyatullina GV, Yamansarov EY, Tolstikov GA. Betulin and ursolic acid synthetic derivatives as inhibitors of Papilloma virus. Bioorg Med Chem Lett 2010; 20:4088-90. [PMID: 20558062 DOI: 10.1016/j.bmcl.2010.05.083] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2010] [Revised: 05/19/2010] [Accepted: 05/19/2010] [Indexed: 01/05/2023]
Abstract
The synthesis of new betulin and ursolic acid derivatives and evaluation of their antiviral activity in vitro is reported. Betulin was modified at positions C-3, C-20 and C-28 to afford the derivatives with nicotinoyl-, methoxycynnamoyl-, alkyne and aminopropoxy-2-cyanoethyl-moieties. The two stage conversion of betulin to the new ursane-type triterpenoid by treatment of allobetulin with Ac(2)O-HClO(4) is suggested. Cyanoethylation of ursonic acid oxime led to cyanoethyloximinoderivative. According to the results of antiviral screening against human papillomavirus type 11 the selectivity index for tested triterpenoids has a range from 10 to 35 with no cellular cytotoxicity, the most remarkable activity was found for 3beta,28-di-O-nicotinoylbetulin. 3Beta,28-dihydroxy-29-norlup-20(30)-yne was also active against HCV replicon (EC(50) 1.32; EC(90) 16.82; IC(50) 12.41; IC(90) >20; SI(50) 9.4; SI(90) >1.19). 28-O-methoxycynnamoylbetulin was active against influenza type A virus (H1N1) (EC(50) 2; IC(50) >200; SI >100).
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Affiliation(s)
- Oxana B Kazakova
- Institute of Organic Chemistry, Ufa Research Center of the Russian Academy of Sciences, 71, Prospect Oktyabrya, 450054 Ufa, Russian Federation.
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Kazakova OB, Medvedeva NI, Tolstikov GA, Kukovinets OS, Yamansarov EY, Spirikhin LV, Gubaidullin AT. Synthesis of terminal acetylenes using POCl3 in pyridine as applied to natural triterpenoids. Mendeleev Communications 2010. [DOI: 10.1016/j.mencom.2010.06.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Kazakova OB, Giniiatullina GV, Tolstikov GA, Kataev VE, Musin RZ. [Synthesis and modification of triterpenoids with two lupan backbones]. Bioorg Khim 2009; 35:714-20. [PMID: 19915652 DOI: 10.1134/s1068162009050173] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The first derivatives containing two lupan backbones were synthesized by the interaction of betulonic acid chloride with diols (ethylene glycol and diethylene glycol) and monoethanolamine. A modification of ring A of ethylene-l,2-bis(betulonnate) led to its bis(3beta-aminopropyloxy) and bis(3,4-seco-2-cyano) derivatives.
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Affiliation(s)
- O B Kazakova
- Institute of Organic Chemistry, Ural Scientific Center, Russian Academy of Sciences, Ufa, Bashkortostan, Russia.
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Froelich A, Kazakova OB, Tolstikov G, Gzella AK. (E)-17β,19-Epoxy-methano-17,23,24-tridemethyl-4-nor-5β,18α-olean-3-one oxime. Acta Crystallogr Sect E Struct Rep Online 2009; 65:o1262. [PMID: 21583127 PMCID: PMC2969752 DOI: 10.1107/s1600536809016675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2009] [Accepted: 05/04/2009] [Indexed: 11/10/2022]
Abstract
In the penta-cyclic triterpenoide skeleton of the title mol-ecule, C(27)H(43)NO(2) [systematic name: (3E,3aS,5aR,5bR,7aR,11R,11aR,11bR,13aR,13bR)-5a,5b,10,10,13b-penta-methyl-icosa-hydro-1H-11,7a-(epoxy-methano)cyclo-penta-[a]chrysen-3-one oxime], the five-membered ring A has an envelope conformation, while the six-membered rings B-E adopt chair conformations. Rings A and B are cis-fused. The hydroximino group has an E configuration. Strong inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into helical chains.
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