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Acta Crystallogr C ; 55 ( Pt 12): 2129-31, 1999 Dec 15.
Article in English | MEDLINE | ID: mdl-10641284

ABSTRACT

The title triterpene, D-friedoolean-14-en-3 beta-yl acetate, C32H52O2, was isolated from dichloromethane extracts of the roots of common ragweed Ambrosia artemisiifolia. The skeleton contains five fused six-membered rings with an average Csp3-Csp3 bond distance of 1.549 (6) A and one double bond of length 1.348 (6) A. The D and E rings are cis-fused. The compound also contains a beta-oriented acetate group with a C-O distance 1.461 (5) A.


Subject(s)
Oleanolic Acid/analogs & derivatives , Plant Roots/chemistry , Triterpenes/chemistry , Crystallography, X-Ray , Models, Molecular , Molecular Conformation , Oleanolic Acid/chemistry , Plant Extracts/chemistry
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