Two new steroids from sclerotia of the fungus Omphalia lapidescens

Abstract

Two new steroids, leiwansterols A (1) and B (2), along with three known ones (3–5), were isolated from the sclerotia of the fungus Omphalia lapidescen. Their structures were elucidated on the basis of spectral data. The isolated compounds showed weak anti-tobacco mosaic virus activity.

Keywords::

• Omphalia lapidescens
• steroid
• leiwansterol A
• leiwansterol B

Acknowledgment

This work was financially supported by Special Fund for Agro-scientific Research in the Public Interest of China (No. 200903052).