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Acta Pol Pharm. 2011 May-Jun;68(3):393-401.

New steroidal lactones and homomonoterpenic glucoside from fruits of Malva sylvestris L.

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Drug Standardization Research Unit, Department of Chemistry, Faculty of Science, Jamia Hamdard, Hamdard Nagar, New Delhi-110062, India.


Phytochemical investigation of the ethanolic extract of defatted fruits of Malva sylvestris Linn. (Malvaceae) led to the isolation of six new steroidal lactones and a homomonoterpenic glucoside along with beta-sitosterol-3-beta-D-glucopyranoside. The structures of new phytoconstituents have been elucidated as cholest-5-en-3a-ol-18(21)-olide (sylvestrosterol A), cholest-9(11)-en-3alpha-ol-18(21)-olide (sylvestrosterol B), cholest-4,6,22-trien-3alpha-ol-18(21)-olide (sylvestrosterol C), 2-methyl-6-methylene-n-decan-2-olyl- 3beta-D-glucopyranoside (malvanoyl glucoside), cholest-7-en-18(21)-olide-3alpha-olyl-3beta-D-glucopyranoside (sylvestrogenin A), cholest-9(11)-en-18(21)-olide-3alpha-olyl-3beta-D-glucopyranoside (sylvestrogenin B) and cholest-5-en-8(21)-olide-3alpha-olyl-3beta-D-glucopyranoside (sylvestrogenin C).The structures of all these phytoconstituents have been established on the basis of spectral data analysis and chemical reactions.

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