(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 independent mol-ecules are linked into a layer parallel to (010) by O-H⋯O hydrogen bonds.

DOI: 10.1107/S1600536810002072

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@inproceedings{Harneti201020S2425Dihydroxy2024epoxy34secodam, title={(20S)-24,25-Dihydr­oxy-20,24-ep­oxy-3,4-secodammar-4(28)-en-3-oic acid from Aglaia smithii }, author={Desi Harneti and Unang Supratman and Mat Ropi Mukhtar and Khalijah Binti Awang and Seik Weng Ng}, booktitle={Acta crystallographica. Section E, Structure reports online}, year={2010} }