Miscellaneous Monoterpenes

Atta-ur-Rahman, _; Ahmad, Viqar Uddin

doi:10.1007/978-1-4615-3290-3_11

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2012

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“…The hexane extract of H. reniformis roots was subjected to column chromatography and yielded bulnesol, which was identified by comparison of its spectroscopic data with those reported in the literature [ 9 , 10 ], a 4,5-seco-guaiane 1 with an unusual carbon skeleton ( Figure 1 ), and a nine-membered sesquiterpene lactone 2 with a new carbon skeleton ( Figure 1 ). Together with sitosterol-3- O -β-D-glucopyranoside, which was identified by comparison of its spectroscopic data with those reported in the literature [ 11 ], a new sesquiterpene, megastigmane ( 3 ), was isolated from the acetone extract of roots ( Figure 1 ).…”

Section: Resultsmentioning

confidence: 99%

4,5-Seco-Guaiane and a Nine-Membered Sesquiterpene Lactone from Holostylis reniformis

et al. 2012

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Root extracts of Holostylis reniformis (Aristolochiaceae) yielded three new natural sesquiterpenes, a sesquiterpene with an unusual carbon skeleton, 4,5-seco-guaiane (7-epi-11-hydroxychabrolidione A, 1), a nine-membered lactone with new carbon skeleton (holostylactone, 2), and a new megastigmane [(6S,7E)-6,9-dihydroxy-10-(2'-hydroxy-ethoxy)-4,7-megastigmadien-3-one, 3], together with bulnesol and sitosterol-3-O-β-D-glucopyranoside. The structures of these compounds were determined by spectroscopic analyses and B3LYP/STO-3G** theoretical studies.

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Section: Resultsmentioning

confidence: 99%