Morolic acid (3-Hydroxyolean-18-en-28-oic acid) from the bark of Eucalyptus papuana F. Muell
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3-Oxoolean-1-en-28-oic acid–n-hexane–water (4/1/1) from the bark of Walsura pinnata Hassk
3-Oxoolean-1-en-28-oic acid, isolated from the bark of Walsura pinnata Hassk, crystallized from n-hexane as an n-hexane 0.25-solvent 0.25-hydrate, C(30)H(46)O(3)·0.25C(6)H(14)·0.25H(2)O. There are two independent mol-ecules in the asymmetric unit of the title compound. The three six-membered cyclo-hexane rings in each mol-ecule adopt chair conformations and the carboxyl substituent occupies an ...
متن کامل(20S)-24,25-Dihydroxy-20,24-epoxy-3,4-secodammar-4(28)-en-3-oic acid from Aglaia smithii
The title compound, C(30)H(50)O(5), was isolated from the bark of Aglaia smithii. There are two independent mol-ecules in the asymmetric unit that differ in the orientation of the isopropenyl group attached to the cyclo-hexane ring. The cyclo-hexane rings in both mol-ecules adopt chair conformations, whereas the cyclo-pentane and tetra-hydro-furan rings adopt envelope conformations. The indepen...
متن کامل3-Cyano-11-oxo-3,4-seco-12a-aza-C-homoolean-4(23)-en-28-oic acid methyl ester
The title compound, C(31)H(48)N(2)O(3), is a Beckmann rearrangement product. The isopropenyl and meth-oxy-carbonyl groups have β-orientations, whereas the 2-cyano-ethyl group has an α-orientation. In the triterpenoid skeleton, the seven-membered lactam ring, as well as the three six-membered carbocyclic rings, have chair conformations. In the crystal, mol-ecules are linked via nonclassical C-H⋯...
متن کاملVolatile Oil Constituents of the Eucalyptus viridis R. T. Baker and Eucalyptus oleosa F. Muell. Leaves from Iran
Background: The genus Eucalyptus (family Myrtaceae) comprises well-known plants of over 600 species of trees. Although most of the plants are native to Australia, numerous species have been introduced to other parts of the world, including Iran, as economic and ornamental trees in forest trial provenances, where the plants have become source of important fast-growing hardwood trees and Eucaly...
متن کامل3β-Acetoxy-12-oxoolean-28-oic acid benzyl ester
The mol-ecule of title compound, C(39)H(56)O(5), contains five fused six-membered rings, four of which (rings A, B, D and E) adopt a chair conformation, while the other (ring C) has a half chair conformation. The acet-oxy and carb-oxy-benzyl groups occupy equatorial positions.
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ژورنال
عنوان ژورنال: Australian Journal of Chemistry
سال: 1965
ISSN: 0004-9425
DOI: 10.1071/ch9650115