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24-Methyl-lanosta-7,25-dien-3-one.

Hussain N - Acta Crystallogr Sect E Struct Rep Online (2010)

Bottom Line: The three six-membered rings adopt chair, slightly distorted half-chair and distorted boat conformations, and the five-membered ring is in an envelope conformation.All the rings are trans fused.In the crystal structure, there is a weak C-H⋯O hydrogen bond.

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ABSTRACT
THE TITLE COMPOUND [SYSTEMATIC NAME: 17-(5,6-di-methyl-hept-6-en-2-yl)-4,4,10,13,14-penta-methyl-1,5,6,10,11,12,13,15,16,17-deca-hydro-2H-cyclo-penta-[α]phenanthren-3(4H,9H,14H)-one], C(31)H(50)O, is a triterpenoid which was isolated from Skimmia laureola. The three six-membered rings adopt chair, slightly distorted half-chair and distorted boat conformations, and the five-membered ring is in an envelope conformation. All the rings are trans fused. In the crystal structure, there is a weak C-H⋯O hydrogen bond.

No MeSH data available.


Related in: MedlinePlus

Unit cell packing of (I) showing non-classical hydrogen bonding interaction with dashed lines; H atoms not involved in H-bonds have been excluded for clarity.
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Fap2: Unit cell packing of (I) showing non-classical hydrogen bonding interaction with dashed lines; H atoms not involved in H-bonds have been excluded for clarity.


24-Methyl-lanosta-7,25-dien-3-one.

Hussain N - Acta Crystallogr Sect E Struct Rep Online (2010)

Unit cell packing of (I) showing non-classical hydrogen bonding interaction with dashed lines; H atoms not involved in H-bonds have been excluded for clarity.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2983586&req=5

Fap2: Unit cell packing of (I) showing non-classical hydrogen bonding interaction with dashed lines; H atoms not involved in H-bonds have been excluded for clarity.
Bottom Line: The three six-membered rings adopt chair, slightly distorted half-chair and distorted boat conformations, and the five-membered ring is in an envelope conformation.All the rings are trans fused.In the crystal structure, there is a weak C-H⋯O hydrogen bond.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
THE TITLE COMPOUND [SYSTEMATIC NAME: 17-(5,6-di-methyl-hept-6-en-2-yl)-4,4,10,13,14-penta-methyl-1,5,6,10,11,12,13,15,16,17-deca-hydro-2H-cyclo-penta-[α]phenanthren-3(4H,9H,14H)-one], C(31)H(50)O, is a triterpenoid which was isolated from Skimmia laureola. The three six-membered rings adopt chair, slightly distorted half-chair and distorted boat conformations, and the five-membered ring is in an envelope conformation. All the rings are trans fused. In the crystal structure, there is a weak C-H⋯O hydrogen bond.

No MeSH data available.


Related in: MedlinePlus