# Chemical Constituents of Oxytropis ochrocephala

## TL;DR

This study identifies new chemical compounds in Oxytropis ochrocephala and tests their insecticidal effects on a specific pest.

## Contribution

The discovery of a new lignan and a new phenolic glycoside from Oxytropis ochrocephala adds to the known chemical constituents of this plant.

## Key findings

- A new lignan and a new phenolic glycoside were isolated from Oxytropis ochrocephala.
- Four known compounds showed weak insecticidal activity against Tetranychus urticae at 1 mg/mL after 24 hours.

## Abstract

A new lignan (1) and a new phenolic glycoside (2), together with eighteen known compounds (3–20), were isolated from Oxytropis ochrocephala. Their structures were unambiguously elucidated by spectroscopic techniques (UV, IR, 1D and 2D NMR), and HR-ESI-MS analysis, as well as by comparison with the literature. The insecticidal activity of these compounds was evaluated against Tetranychus urticae Koch, and the results showed that compounds 3, 9, 15, and 16 had a weak inhibitory effect at a concentration of 1 mg/mL after treatment for 24 h.