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Journal of Asian Natural Products Research Volume 15, 2013 - Issue 9
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Articles

A new cycloartane nortriterpenoid from stem and leaf of Quercus variabilis

Ling-Yun JiaSchool of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
,
Jing WangSchool of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
,
Chong-Ning LvSchool of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
,
Tan-Ye XuSchool of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang, 110016, China
,
Ben-Zhi JiaThe Fourth Affiliated Hospital of China Medical University, Shenyang, 110061, ChinaCorrespondence[email protected]
&
Jin-Cai LuThe Fourth Affiliated Hospital of China Medical University, Shenyang, 110061, ChinaCorrespondence[email protected]
Pages 1050-1054 | Received 10 Jul 2012, Accepted 26 Dec 2012, Published online: 22 Jul 2013
 
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Abstract

A new compound 3-acetyloxy-epicycloeucalenol-24-one (1), with 11 known compounds 3α-acetyloxy-4α,14α-dimethyl-9β,19-cycloergost-24-oic acid (2), 3-epicycloeucalenol (3), 3-epicycloeucalenyl-24-one (4), 3-epicycloeucalenyl acetate (5), 4β,14α-dimethyl-5α-ergosta-9β,19-cyclo-24(31)-en-3β-hydroxy-4α-carboxylic acid (6), cycloeucalenone (7), friedelin (8), epifriedelanol (9), lup-20 (29)-en-3β,30-diol (10), betulin (11), lupeol (12), was isolated from the stems and leaves of Quercus variabilis Blume. Seven compounds (1–7) showed anti-inflammatory activity.

Acknowledgement

The authors are grateful to the analytical detective center, Shenyang Pharmaceutical University, for recording NMR, UV, IR, ESI-MS, and HR-ESI-MS spectra.

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