Abstract
Two new alkyl glycosides, 3-O-β-d-apifuranosyl-(1 → 6)-O-β-d-glucopyranosyl-(3S)-oct-1-en-3-ol (1, clerspide A) and 3-O-β-d-apifuranosyl-(1 → 6)-[β-d-xylopyranosyl-(1 → 2)]-O-β-d-glucopyranosyl-(3S)-oct-1-en-3-ol (2, clerspide B), have been isolated from the whole plants of Clerodendranthus spicatus (Labiatae). Their structures were established on the basis of spectroscopic analyses and chemical method.
Acknowledgements
The authors are grateful to Shanghai Committee of Science and Technology for partial financial support (No. 03DZ19228).