(4R,5R,6S,7R,8S,9R,10S,13S)-7,8β-Epoxy-momilactone-A.
パキスタン産野生ハーブ由来ジテルペン化合物のエポキシ誘導体の結晶構造解析
Abstract
A pimarane-diterpene compound with the molecular formula C20H26O4 was isolated from Leucas urticifolia, a wild herb of the Lamiaceae family found across Punjab, Baluchistan, Sindh, and the Rajputana desert regions of Pakistan. The compound features a pentacyclic framework arising from the fusion of an epoxy ring onto the momilactone-A skeleton. Its absolute configuration was tentatively assigned by comparison with the known crystal structure of momilactone, though further confirmation is required. Solid-state packing is stabilized by four intermolecular C-H···O hydrogen-bonding interactions.
Bibliographic
- Authors
- Shabnam Habib R, Jamshaid M, Tahir MN, Khan TJ, Khan IU
- Journal
- Acta Crystallogr Sect E Struct Rep Online
- Year
- 2008 (2008-04-23)
- PMID
- 21202375
- DOI
- 10.1107/S1600536808010556
- PMC
- PMC2961202
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Delivery context
The delivery route is not clearly identifiable from this paper. For hydrogen intake, inhalation is the most efficient route; inhalation, however, carries explosion risk (empirical LFL of 10%; high-concentration devices are not recommended).
Safety notes
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