The chemical constituents from twigs of Hamamelis japonica and their antiviral activities was written by Park, SeonJu;Nhiem, Nguyen Xuan;Song, Jae-Hyoung;Oh, Mira;Kim, Kil-Nam;Ko, Hyun-Jeong;Kim, Seung Hyun. And the article was included in Natural Product Research.SDS of cas: 27208-80-6 The following contents are mentioned in the article:
Three new monoterpenoid glycosides (-) and one new flavanol () along with 15 known compounds were isolated from the twig of Hamamelis japonica Sieb. et Zucc. The chem. constituent study of the twig of H. japonica has performed for the first time in the present investigation. Their structures were determined based on extensive spectroscopic methods including 1 D and 2 D NMR and CD spectra data. All isolated compounds were tested for their antiviral activities against HRV1B-, EV71-, PR8- and CVB3-infected Vero cells. Among the tested compounds, (-)-epigallocatechin 3-O-gallate exhibited the most consistent and effective antiviral activities against EV71 and PR8 infections. This study involved multiple reactions and reactants, such as (2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6SDS of cas: 27208-80-6).
(2S,3R,4S,5S,6R)-2-(3-Hydroxy-5-((E)-4-hydroxystyryl)phenoxy)-6-(hydroxymethyl)tetrahydro-2H-pyran-3,4,5-triol (cas: 27208-80-6) belongs to alcohols. Similar to water, an alcohol can be pictured as having an sp3 hybridized tetrahedral oxygen atom with nonbonding pairs of electrons occupying two of the four sp3 hybrid orbitals. Alcohols may be oxidized to give ketones, aldehydes, and carboxylic acids. These functional groups are useful for further reactions. Oxidation of organic compounds generally increases the number of bonds from carbon to oxygen (or another electronegative element, such as a halogen), and it may decrease the number of bonds to hydrogen.SDS of cas: 27208-80-6
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts