Figure 1

Active principles of Asarum heterotropoides root. Structures of safrole (1), methyleugenol (2), 1,8-cineole (3), α-asarone (4), δ-3-carene (5), (−)-asarinin (6), and pellitorine (7).
Active principles of Asarum heterotropoides root. Structures of safrole (1), methyleugenol (2), 1,8-cineole (3), α-asarone (4), δ-3-carene (5), (−)-asarinin (6), and pellitorine (7).