Abstract
Four phenylpropanoids, forsythoside B
1, lysionotoside
2, verbascoside
3, betonyoside F
4, an iridoid, verminoside
5, seven flavonoids, compounds
6–
12, and two betaine derivatives
13 and
14 were isolated from the aerial parts of
Ballota undulata. The structures of the isolated compounds were established by high resolution NMR and ESI-MS. The antioxidant activity of all compounds was determined by measuring free radical scavenging activity by TEAC test.