Stachys sylvatica

HO, Isolated from Betonica officinalis and Stachys sylvatica Betonicine - no known bioactivity 242... 

Schulze and Trier discovered betonicine, C7H13O3N, in Betonica officinalis L. and in Stachys sylvatica L. (43, 58). This alkaloid has a sweet taste, a neutral reaction and is readily soluble in water but difficultly so in cold alcohol. Crystallization from this latter solvent yields short, four-sided, truncated pyramids containing a molecule of water of crystallization, C7H13O3N H2O. These crystals, after drying, melted at 252° (dec) (59) and at temperatures in excess of this produced a vapor which shows an intense pyrrole reaction. It is optically active, [a ]D 36.6° (water), and forms salts readily. The hydrochloride separates from ethanol as colorless prismatic needles, m.p. 224° (dec) [a]J —24.8° (water), the chloroaurate, clusters of small yellow tablets, melts at 230-232° (dec) and the chloroplatinate, (B HCLjPtCU, melts at 225-226° (dec). 

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