Anti-pathogens constituents and novel ergosterol derivatives with the broad-spectrum germicidal substances from earthworm, Pheretima aspergillum

New natural products (Compounds I-IV) including one alkaloids (I), two ergosterol derivatives (II-III) and one alkyl oligoglycosides (IV) were isolated for the first time from annulata earthworm, Pheretima aspergillum.84