Phenylpropanoid glycosides from Conyza japonica

• DOI: 10.1007/s10600-012-0381-3
• Publication Date: 2012-11-14T00:28:26Z
• Authors: Jiang Hu; Xiaodong Shi; Wei Ding; Jiangang Chen; Changsheng Li
• Keywords: Phenylpropanoid; Frond

Three new phenylpropanoid glycosides, named 1-O-[3-O-acetyl-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl]-3-hydroxycinnamaldehyde (1), 1-O-[2,3-O-diacetyl-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl]-3-methoxycinnamaldehyde (2), and 1-O-[3-O-acetyl-α-L-rhamnopyranosyl-(1→6)-β-D-glucopyranosyl]-4-allyl-2-methoxyphenol (3), were isolated from the 95% EtOH extract of the dry fronds of Conyza japonica. The structures of the new compounds were elucidated by spectral methods.