R. Masuma et al., AROHYNAPENE-A AND AROHYNAPENE-B, NEW ANTICOCCIDIAL AGENTS PRODUCED BYPENICILLIUM SP - TAXONOMY, FERMENTATION, AND STRUCTURE ELUCIDATION, Journal of antibiotics, 47(1), 1994, pp. 46-53
Penicillium sp. FO-2295, a water isolate, was found to produce a serie
s of new anticoccidial compounds. Two active compounds, designated aro
hynapenes A and B, were isolated from the fermentation broth of the pr
oducing strain by solvent extraction and preparative HPLC. Arohynapene
A was deduced to be thyl-5,6,7,8-tetrahydronaphtalene)-2,4pentadienoi
c acid, and arohynapene B was 6,8-dimethyltetrahydronaphtalene)-2,4-pe
ntadienoic acid. Arohynapenes inhibited the growth of Eimeria tenella
in an in vitro assay using BHK-21 cells as a host. No schizont in the
cells was observed at concentrations ranging above 35.0 mu M and 7.0 m
u M for arohynapenes A and B, respectively.