Search Results - "Tretyakova, Elena V"
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Facial Synthesis and Bioevaluation of Well-Defined OEGylated Betulinic Acid-Cyclodextrin Conjugates for Inhibition of Influenza Infection
Published in Molecules (Basel, Switzerland) (09-02-2022)“…Betulinic acid (BA) and its derivatives exhibit a variety of biological activities, especially their anti-HIV-1 activity, but generally have only modest…”
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2
Synthesis of Novel Diterpenic Peptides via the Ugi Reaction and Their Anticancer Activities
Published in MolBank (01-08-2023)“…Novel diterpenic peptide derivatives were synthesized via the Ugi four-component reaction at ambient temperature. The protocol employed a reaction between…”
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3
Synthesis and antiviral activity of maleopimaric and quinopimaric acids’ derivatives
Published in Bioorganic & medicinal chemistry (15-10-2015)“…A thirty six derivatives of maleopimaric and quinopimaric acids’ modified in the E-ring, at the carbonyl- and carboxyl-groups were synthesized and evaluated…”
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4
Synthesis and bioevaluation of water-soluble β -cyclodextrin-diterpene acid conjugates
Published in Natural product research (29-04-2024)“…A series of -cyclodextrin ( -CD)-conjugates were prepared by combining three abietane-type diterpene acids with two azide-functionalized -CDs via click…”
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5
Synthetic modifications of abietane diterpene acids to potent antimicrobial agents
Published in Natural product research (17-01-2023)“…Among abietane type semisynthetic diterpenoids, a series of quinopimaric and maleopimaric acid derivatives modified at the carboxyl and carbonyl groups, and in…”
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Abietic, maleopimaric and quinopimaric dipeptide Ugi-4CR derivatives and their potency against influenza A and SARS-CoV-2
Published in Natural product research (18-06-2023)“…A set of 12 abietane diterpene derivatives have been synthesised by the Ugi-four component reaction (Ugi-4CR) and tested for cytotoxicity and activity against…”
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7
Synthesis, modification, and biological activity of propargylated methyl dihydroquinopimarates
Published in Natural product research (01-01-2022)“…The introduction of the alkynyl moiety to the abietane diterpenic core by modification of the cycle E of methyl dihydroquinopimarate is described. The…”
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Synthesis and evaluation of diterpenic Mannich bases as antiviral agents against influenza A and SARS-CoV-2
Published in Phytochemistry letters (01-10-2022)“…A chemical library was constructed based on the resin acids (abietic, dehydroabietic, and 12-formylabietic) and its diene adducts (maleopimaric and…”
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9
Synthesis and anticancer activity of quinopimaric and maleopimaric acids’ derivatives
Published in Bioorganic & medicinal chemistry (15-11-2014)“…[Display omitted] A series of quinopimaric and maleopimaric acids’ derivatives modified in the E-ring, at the carbonyl- and carboxyl-groups were synthesized…”
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10
Indole Derivatives of Fusidane Triterpenoids: Synthesis and the Antibacterial Activity
Published in Chemistry of heterocyclic compounds (New York, N.Y. 1965) (01-06-2020)“…New indole derivatives of fusidic acid were synthesized by using the Fischer reaction. The obtained compounds were screened in vitro for antibacterial activity…”
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Synthesis of New Dihydroquinopimaric Acid Analogs with Nitrile Groups as Apoptosis-Inducing Anticancer Agents
Published in Anti-cancer agents in medicinal chemistry (01-01-2019)“…Cyan-containing compounds are of great interest as potential anticancer agents. Terpenoids can severe as a natural matrix for the development of promising…”
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12
Synthesis of a Novel 1,2,4-Oxadiazole Diterpene from the Oxime of the Methyl Ester of 1β,13-Epoxydihydroquinopimaric Acid
Published in Natural product communications (01-01-2016)“…Oximation of the dihydroquinopimaric acid O-cyanoethylderivative (2) via the amidoxime 3, and cyclization with trifluoroacetic anhydride resulted in a new…”
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13
Synthesis of 5,19-(2,6-Dimethylpyridin-4-yl)-trisnorlupane and Oleanane
Published in Natural product communications (01-03-2016)“…Acetylation of the 3,4-seco-derivatives of betulin, allobetulin and 28-oxyallobetulone gave the 5,19-(2,6-dimethylpyridin-4-yl)-4,23,24,20,29,30-hexanorlupane,…”
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14
An efficient oxyfunctionalization of quinopimaric acid derivatives with ozone
Published in Natural product communications (01-03-2013)“…An access to oxyfunctionalized quinopimaric acid derivatives is reported. The ozonolysis of methyl dihydroquinopimarate occurs through 1,2-cycloaddition of…”
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15
Synthesis, structure, and antitumor activity of 2,9-disubstituted perhydro 2,3a,7b,9,10a,14b-hexaazadibenzotetracenes
Published in RSC advances (04-06-2020)“…Catalytic methods for the synthesis of previously unknown 2,9-disubstituted 3b R *,7a R *,10b R *,14a R *- cis…”
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16
Synthesis and cytotoxic activity of 3-amino substituted fusidane triterpenoids
Published in Medicinal chemistry research (01-12-2019)“…New 3-amino substituted derivatives, containing linear, aromatic, and heterocyclic fragments, as well as conjugates with biogenic amines—spermine and…”
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17
Inhibiting the cancer cell growth by maleopimarate amino imide bis-tetrazoles synthesized via the azido-Ugi reaction
Published in Mendeleev communications (01-07-2024)“…[Display omitted] The azido-Ugi reaction of methyl maleopimarate N-(2- aminoethyl) imide with isocyanides, paraformaldehyde and trimethylsilyl azide in one…”
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18
Click chemistry can access unnatural N-acetylneuraminic acid–anchored β-cyclodextrin conjugates as potential anti-SARS-CoV-2 entry inhibitors
Published in Tetrahedron letters (28-04-2024)“…[Display omitted] •A series of mono- and heptavalent unnatural Neu5Ac glycoclusters were designed and synthesized.•The most potent inhibition was observed for…”
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Convenient one-pot synthesis of resin acid Mannich bases as novel anticancer and antifungal agents
Published in Medicinal chemistry research (01-09-2018)“…The one-pot three-component CuCl-catalyzed aminomethylation of the abietane diterpenoid propargyl esters by formaldehyde and secondary amines was studied for…”
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The Nenitzescu Reaction in the Synthesis of New Abietane Diterpene Indoles
Published in Chemistry of heterocyclic compounds (New York, N.Y. 1965) (01-10-2020)“…The new abietane diterpene indoles were synthesized by the Nenitzescu reaction of 1a,4a-dehydroquinopimaric acid and its methyl ester with…”
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