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. 2022 Apr 30;27(9):2861. doi: 10.3390/molecules27092861

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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Compounds obtained from the methanol extract of red betel leaf. (1) (8R)-8-(4-hydroxy-3,5-dimethoxy)-propane-8-ol-4-O-β-D-glucopyranoside; (2) 4-Allyl-2,6-dimethoxy-3-hydroxy-1-D-glucopyranoside; (3) 3-[(1E)-3-hydroxy-1-propen-1-yl]-2,5-dimethoxyphenyl-D-glucopyranoside; (4) Cimidahurinin; (5) Erigeside II; (6) Syringe; (7) β-phenylethyl-β-D-glucoside; (8) Methylsalicylate-2-O-β-D-glucopyranoside; (9) Icariside D1; (10) 4-Hydroxybenzoic acid-D-glucosylester; (11) Benzyl-β-D-glucoside; (12) Phenylmethyl-6-O-α-L-arabinofuranosyl-β-D-glucopyranoside; (13) Hydroxytyrosol-1glucopyranoside (14) Gentisic acid; (15) Catechaldehyde; (16) (S)-Menthiafolic acid; (17) Ioliolide; (18) 5β,6β-dihydroxy-3α-(β-D-glucopyranosyloxy)-7E-Megastigmen-9-one; (19) (3E)-4-[(1S,2S,4S)-4-(β-D-glucopyranosyloxy)-1,2-dihydroxy-2,6,6-tri-methylcyclohexyl]3-buten-2-one; (20) (6S,9S)-roseoside; (21) Cuneataside E (22) N-trans-feruloyltyramine-4′-O-β-D-glucopyranoside; (23) Syringaresinol-β-D-glucoside; and (24) Vitexin 2″-O-rhamnoside.

Compounds obtained from the methanol extract of red betel leaf. (1) (8R)-8-(4-hydroxy-3,5-dimethoxy)-propane-8-ol-4-O-β-D-glucopyranoside; (2) 4-Allyl-2,6-dimethoxy-3-hydroxy-1-D-glucopyranoside; (3) 3-[(1E)-3-hydroxy-1-propen-1-yl]-2,5-dimethoxyphenyl-D-glucopyranoside; (4) Cimidahurinin; (5) Erigeside II; (6) Syringe; (7) β-phenylethyl-β-D-glucoside; (8) Methylsalicylate-2-O-β-D-glucopyranoside; (9) Icariside D1; (10) 4-Hydroxybenzoic acid-D-glucosylester; (11) Benzyl-β-D-glucoside; (12) Phenylmethyl-6-O-α-L-arabinofuranosyl-β-D-glucopyranoside; (13) Hydroxytyrosol-1glucopyranoside (14) Gentisic acid; (15) Catechaldehyde; (16) (S)-Menthiafolic acid; (17) Ioliolide; (18) 5β,6β-dihydroxy-3α-(β-D-glucopyranosyloxy)-7E-Megastigmen-9-one; (19) (3E)-4-[(1S,2S,4S)-4-(β-D-glucopyranosyloxy)-1,2-dihydroxy-2,6,6-tri-methylcyclohexyl]3-buten-2-one; (20) (6S,9S)-roseoside; (21) Cuneataside E (22) N-trans-feruloyltyramine-4′-O-β-D-glucopyranoside; (23) Syringaresinol-β-D-glucoside; and (24) Vitexin 2″-O-rhamnoside.