Isolation of 19,20-Z-Vallesamine and 19,20-E-Vallesamine from Alstonia scholaris

Isolation of 19,20-Z-Vallesamine and 19,20-E-Vallesamine from Alstonia scholaris Scholarine: An indole alkaloid of Alstonia scholaris Unique Monoterpenoid Indole Alkaloids from <i>Alstonia scholaris</i> Alschomine and isoalschomine, new alkaloids from the leaves of Alstonia scholaris. Indole alkaloids from Alstonia scholaris Alschomine and isoalschomine, new alkaloids from the leaves of Alstonia scholaris. Indole Alkaloids from the Leaves of Alstonia scholaris Some New Vallesamine-Type Alkaloids Indole alkaloids from the leaves of Philippine Alstonia scholaris Indole alkaloids from the leaves of Philippine Alstonia scholaris