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182 0 _ab
200 1 _aDivergent Synthesis of Natural Benzyl Salicylate and Benzyl Gentisate Glucosides
_fD. D. Fedorova, D. S. Nazarova, D. L. Avetyan (Avetian) [et al.]
203 _aText
_celectronic
300 _aTitle screen
330 _aHerein is reported the first total synthesis of benzyl salicylate and benzyl gentisate glucosides present in various plant species, in particular the Salix genus, such as Populus balsamifera and P. trichocarpa. The method permits the synthesis of several natural phenolic acid derivatives and their glucosides starting from salicylic or gentisic acid. The divergent approach afforded access to three different acetylated glucosides from a common synthetic intermediate. The key step in the total synthesis of naturally occurring glycosides—the selective deacetylation of the sugar moiety—was achieved in the presence of a labile benzyl ester group by employing mild deacetylation conditions. The protocol permitted synthesis of trichocarpine (4 steps, 40% overall yield), isotrichocarpine (3 steps, 51% overall yield), trichoside (6 steps, 40% overall yield), and deoxytrichocarpine (3 steps, 42% overall yield) for the first time (>95% purity). Also, the optimized mild deacetylation conditions allowed synthesis of 2-O-acetylated derivatives of all four glycosides (5–17% overall yield, 90–95% purity), which are rare plant metabolites.
333 _aРежим доступа: по договору с организацией-держателем ресурса
461 _tJournal of Natural Products
463 _tVol. 83, iss. 10
_v[P. 3173-3180]
_d2020
610 1 _aэлектронный ресурс
610 1 _aтруды учёных ТПУ
610 1 _aсинтез
701 1 _aFedorova
_bD. D.
_gDarjya
701 1 _aNazarova
_bD. S.
_gDarjya
701 1 _aAvetyan (Avetian)
_bD. L.
_cChemical engineer
_cEngineer of Tomsk Polytechnic University
_f1995-
_gDavid Ludvigovich
_2stltpush
_3(RuTPU)RU\TPU\pers\46600
701 1 _aShatskiy
_bA.
_gAndrey
701 1 _aBelyanin
_bM. L.
_corganic chemist
_cAssociate Professor of Tomsk Polytechnic University, Candidate of chemical sciences
_f1973-
_gMaksim L'vovich
_2stltpush
_3(RuTPU)RU\TPU\pers\31268
701 1 _aKarkas
_bM. D.
_gMarkus
701 1 _aStepanova
_bE. V.
_cchemist
_cengineer of Tomsk Polytechnic University
_f1978-
_gElena Vladimirovna
_2stltpush
_3(RuTPU)RU\TPU\pers\34245
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИсследовательская школа химических и биомедицинских технологий
_c(2017- )
_h8120
_2stltpush
_3(RuTPU)RU\TPU\col\23537
712 0 2 _aНациональный исследовательский Томский политехнический университет
_bИнженерная школа новых производственных технологий
_bНаучно-образовательный центр Н. М. Кижнера
_h7872
_2stltpush
_3(RuTPU)RU\TPU\col\23556
801 2 _aRU
_b63413507
_c20201109
_gRCR
856 4 _uhttps://doi.org/10.1021/acs.jnatprod.0c00838
942 _cCF