Dihydromevinolin,a potent hypocholesterolemic metabolite produced by Aspergillus terreus.

Abstract
A new, potent hypocholesterolemic agent is produced by cultures of A. terreus. The isolation of the compound and its characterization as 4a,5-dihydromevinolin containing a trans-fused octahydro-naphthalene system are described. Comparative data for dihydromevinolin and mevinolin in 3 biological assays are given: in vitro inhibition of HMG[3-hydroxy-3-methylglutaryl]-CoA reductase [EC 1.1.1.34], inhibition of sterol synthesis in cell cultures [mouse L-M cells] and inhibition of cholesterol synthesis in vivo in rats.