More Phenolic Derivatives with an Irregular Sesquiterpenyl Side Chain from Macaranga pruinosa

Yana      M. Syah; Emilio      L. Ghisalberti

doi:10.2174/2210315511202010045

Abstract

Three new flavonol derivatives, macapruinosins D-F (1-3), together with a known flavonoid glyasperin A, had been isolated from the acetone extract of the leaves of Macaranga pruinosa. The structures of the new compounds were identified based on their spectroscopic data, including UV, IR, 1D and 2D NMR, and HREIMS spectra. Compounds 1 - 2 were further examples of phenolic compounds having an irregular sesquiterpenyl side chain with a cyclobutane skeleton.

Keywords: Cyclobutane sesquiterpene, Euphorbiaceae, flavonoids, flavonols, macapruinosins D-F, macaranga pruinosa, irregular sesquiterpene, structure elucidation, sesquiterpenyl side chain, phenolic compounds

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The Natural Products Journal

Title: More Phenolic Derivatives with an Irregular Sesquiterpenyl Side Chain from Macaranga pruinosa

Volume: 2 Issue: 1

Author(s): Yana M. Syah and Emilio L. Ghisalberti

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Abstract: Three new flavonol derivatives, macapruinosins D-F (1-3), together with a known flavonoid glyasperin A, had been isolated from the acetone extract of the leaves of Macaranga pruinosa. The structures of the new compounds were identified based on their spectroscopic data, including UV, IR, 1D and 2D NMR, and HREIMS spectra. Compounds 1 - 2 were further examples of phenolic compounds having an irregular sesquiterpenyl side chain with a cyclobutane skeleton.

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M. Syah Yana and L. Ghisalberti Emilio, More Phenolic Derivatives with an Irregular Sesquiterpenyl Side Chain from Macaranga pruinosa, The Natural Products Journal 2012; 2 (1) . https://dx.doi.org/10.2174/2210315511202010045