Sesquiterpene Glycosides fromCalendula persica

Abstract
The polar fractions of the extract of the aerial parts of Calendula persica afforded eight sesquiterpene glycosides, five derived from viridiflorol, two of β-eudesmol, and one of 4α-hydroxygermacra-1(10)E,5E-diene. In addition to fucopyranosides, also chinovopyranosides were present. The structures were elucidated by high field NMR techniques.

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