Abstract
Two new dimeric stilbene glucosides, tingitanol A (
1) and tingitanol B (
2) along with four known compounds were isolated from the bulbs of
Iris tingitana. Their structures were established on the basis of spectroscopic methods.
Two new dimeric stilbene glucosides, tingitanol A (
1) and tingitanol B (
2) together with
trans-resveratrol 3-
O-glucopyranoside (
3) in addition to three known isoflavones, 5-
O-methylgenistein (
4), 5-
O-methylgenistein 7-
O-β-
d-glucopyranoside (
5) and betavulgarin (
6) have been isolated for the first time from the fresh bulbs of
Iris tingitana Boiss. & Reut. Their structures were established on the basis of the spectral data and direct comparison with values from previously identified analogues. Additionally, the isolated compounds (
1–
6) were evaluated for the free radical scavenging activity.