Isolation and characterization of new ceramides from aerial parts of Lepidaploa cotoneaster.

Two new ceramides were isolated from the bulbs of Lepidaploa cotoneaster (Willd. ex Spreng.) H.

An unusual caffeic acid derived bicyclic [2.2.2] octane lignan and other constituents from Cordia rufescens.

This work reports isolation of an unusual lignan with a bicyclic [2.2.2] octene skeleton, named rufescenolide (1), from stems of Cordia rufescens, along with β-sitosterol, stigmasterol, syringaldehyde, 3-β-O-D-glucopyranosyl-sitosterol, methyl caffeate, 4-methoxy-protocatechuic acid and methyl rosmarinate.

Podophyllotoxin and other aryltetralin lignans from Eriope latifolia and Eriope blanchetii.

Phytochemical investigation of the aerial parts of Eriope blanchetii and E. latifolia (Lamiaceae) yielded podophyllotoxin, as well as the aryltetralin lignans α- and β-peltatin and yatein. Oleanolic, ursolic and epikatonic acids were also isolated.