Before my researches nothing was known of the constitution of tropine.
On the other hand, by heating tropic acid and tropine together, atropine is regenerated.
In addition to the types of compounds enumerated above we may also notice purin, tropine and the terpenes.
tropine tro·pine (trō'pēn', -pĭn) or tro·pin (-pĭn)
A white, crystalline, poisonous alkaloid obtained chiefly by hydrolysis of atropine.