X-Ray Crystal Structure Analysis of Oxin
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Gerhard Laus; Klaus Wurst
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Article
📅
2003
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John Wiley and Sons
🌐
German
⚖ 124 KB
👁 1 views
## 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