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7-Deacetyl-gedunin.

Ravangpai W, Theerawattananond T, Pengpreecha S, Muangsin N, Pudhom K - Acta Crystallogr Sect E Struct Rep Online (2010)

Bottom Line: In each mol-ecule, the four fused six-membered rings of the genudin core adopt distorted half-chair, chair, twist-boat and twisted half-chair conformations.In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into helical chains propagated in [100].Weak non-classical C-H⋯O contacts further consolidate the crystal packing.

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ABSTRACT
THE TITLE COMPOUND [SYSTEMATIC NAME: (1S,3aS,4aR,4bS,5R,6aR,10aR,10bR,12aS)-1-(furan-3-yl)-5-hy-droxy-4b,7,7,10a,12a-penta-methyl-4b,5,6,6a,7,10a,10b,11,12,12a-deca-hydro-naphtho-[2,1-f]oxireno[2,3-d]isochromene-3,8(1H,3aH)-dione], C(26)H(32)O(6), which is a limonoid-type triterpene isolated from the seeds of X. moluccensis, crystallizes with three independent mol-ecules with very similar geometries in the asymmetric unit. In each mol-ecule, the four fused six-membered rings of the genudin core adopt distorted half-chair, chair, twist-boat and twisted half-chair conformations. In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into helical chains propagated in [100]. Weak non-classical C-H⋯O contacts further consolidate the crystal packing.

No MeSH data available.


Related in: MedlinePlus

The molecular structure of the title compound showing 30% probability displacement ellipsoids and the atom-numbering scheme in one independent molecule.
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Fap1: The molecular structure of the title compound showing 30% probability displacement ellipsoids and the atom-numbering scheme in one independent molecule.


7-Deacetyl-gedunin.

Ravangpai W, Theerawattananond T, Pengpreecha S, Muangsin N, Pudhom K - Acta Crystallogr Sect E Struct Rep Online (2010)

The molecular structure of the title compound showing 30% probability displacement ellipsoids and the atom-numbering scheme in one independent molecule.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3050298&req=5

Fap1: The molecular structure of the title compound showing 30% probability displacement ellipsoids and the atom-numbering scheme in one independent molecule.
Bottom Line: In each mol-ecule, the four fused six-membered rings of the genudin core adopt distorted half-chair, chair, twist-boat and twisted half-chair conformations.In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into helical chains propagated in [100].Weak non-classical C-H⋯O contacts further consolidate the crystal packing.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
THE TITLE COMPOUND [SYSTEMATIC NAME: (1S,3aS,4aR,4bS,5R,6aR,10aR,10bR,12aS)-1-(furan-3-yl)-5-hy-droxy-4b,7,7,10a,12a-penta-methyl-4b,5,6,6a,7,10a,10b,11,12,12a-deca-hydro-naphtho-[2,1-f]oxireno[2,3-d]isochromene-3,8(1H,3aH)-dione], C(26)H(32)O(6), which is a limonoid-type triterpene isolated from the seeds of X. moluccensis, crystallizes with three independent mol-ecules with very similar geometries in the asymmetric unit. In each mol-ecule, the four fused six-membered rings of the genudin core adopt distorted half-chair, chair, twist-boat and twisted half-chair conformations. In the crystal, inter-molecular O-H⋯O hydrogen bonds link the mol-ecules into helical chains propagated in [100]. Weak non-classical C-H⋯O contacts further consolidate the crystal packing.

No MeSH data available.


Related in: MedlinePlus