Synthesis and antimicrobial activity of 7-alkoxyhesperetin derivatives
摘要:
Some new 7-alkoxyhesperetin derivatives, 7-methoxy-(c), 7-butoxy-(d), 7-octyloxy-(e), 7-decyloxy-(f), and 7-dodecyloxyhesperetin(g), were synthesized and confirmed by UV, IR, (1)H NMR, and MS spectra data. The series of the synthesized compounds has been screened for their antibacterial activity in vitro and evaluated their structure-activity relationships. Substitution of the H with alkyl groups at C-7-OH led to significant change of their antibacterial activity. The antibacterial activity of 7-alkoxyhesperetin derivatives increased with the elongating of the length of aliphatic chain, and the maximum activity was reached at twelve carbon atoms. Compound f showed the highest antibacterial activity among all the compounds.
Abstract A newflavanone glycoside, persicogenin 3′-glucoside (5,3′-dihydroxy-7,4′-dimethyoxyflavanone 3′-glucoside) has been characterized from the stem bark of Prunus amygdalus .
[EN] ELECTROCATALYTIC SYNTHESIS OF DIHYDROCHALCONES<br/>[FR] SYNTHÈSE ÉLECTROCATALYTIQUE DE DIHYDROCHALCONES
申请人:UNIV MICHIGAN STATE
公开号:WO2020198578A1
公开(公告)日:2020-10-01
The disclosure relates to methods of forming a dihydrochalcone using electrocatalytic dehydrogenation. In particular, the disclosure relates to methods of forming a dihydrochalcone electrocatalytically hydrogenating (ECH) a reactant compound over a catalytic cathode in a reaction medium having a non-alkaline pH value, thereby forming a dihydrochalcone product; wherein the reactant compound has a structure according to Formula (I). The method can be used to prepare dihydrochalcone sweeteners, such as, for example, naringin dihydrochalcone and neohesperidin dihydrochalcone.