A new iridoid glycoside from Lonicerae Flos / 中草药

ABSTRACT

Objective: To study the chemical constituents from 60% ethanol extract of Lonicerae Flos. Methods: Chromatographic methods were used for the isolation and purification. The structures were identified on the basis of spectroscopic analysis. Results: Six compounds were isolated from Lonicerae Flos. They were identified as demethylsecologanol-7-O-arabinoside (1), 8-epiloganic acid (2), vogeloside (3), sweroside (4), secologanoside (5), and secoxyloganin (6). Conclusion: Compound 1 is a new iridoid glycoside named secologanoside A.