## Abstract The single‐crystal X‐ray structures of speciophylline, mitraphylline, and rhynchophylline, oxindole alkaloids from the Peruvian climbing vine __Uncaria tomentosa__ (Rubiaceae), were determined. The three compounds show N⋅⋅⋅HN hydrogen bonding, which has not been observed in the crystal
✦ LIBER ✦
X-ray crystal structure analysis of parthenin–A sesquiterpene lactone
✍ Scribed by Vivek K. Gupta; K. N. Goswami; K. K. Bhutani
- Publisher
- John Wiley and Sons
- Year
- 1994
- Tongue
- English
- Weight
- 261 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0232-1300
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