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New Benzil and Isoflavone Derivatives with Cytotoxic and NO Production Inhibitory Activities from Placolobium vietnamense.

ABSTRACT: The phytochemical investigation of Placolobium vietnamense stems led to the isolation of a new isoflavone derivative (1) and three new benzil derivatives (2-4), together with four known pyranoisoflavones (5-8). The structures of all isolated compounds were determined on the basis of extensive spectroscopic analyses, including NMR and HRMS spectral data, as well as comparison of their spectroscopic data with those reported in the literature. The cytotoxicity of all isolated compounds was assessed against the human liver hepatocellular carcinoma (Hep G2) cell line, and compound 1 displayed the most significant cytotoxicity with an IC50 value of 8.0 μM. Furthermore, all isolated compounds were also tested for their inhibitory activity against NO production in RAW 264.7 macrophages. Of these, compound 1 exhibited the strongest inhibitory efficacy against the LPS-induced NO production with the IC50 value of 13.7 μM.

SUBMITTER: Do LTM 

PROVIDER: S-EPMC9317696 | biostudies-literature | 2022 Jul

REPOSITORIES: biostudies-literature

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New Benzil and Isoflavone Derivatives with Cytotoxic and NO Production Inhibitory Activities from <i>Placolobium vietnamense</i>.

Do Lien T M LTM   Huynh Tuyet T N TTN   Sichaem Jirapast J  

Molecules (Basel, Switzerland) 20220720 14

The phytochemical investigation of <i>Placolobium vietnamense</i> stems led to the isolation of a new isoflavone derivative (<b>1</b>) and three new benzil derivatives (<b>2</b>-<b>4</b>), together with four known pyranoisoflavones (<b>5</b>-<b>8</b>). The structures of all isolated compounds were determined on the basis of extensive spectroscopic analyses, including NMR and HRMS spectral data, as well as comparison of their spectroscopic data with those reported in the literature. The cytotoxic  ...[more]

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