Terpendoles, Novel ACAT Inhibitors Produced by Albophoma yamanashiensis. III. Production, Isolation and Structure Elucidation of New Components.

The Journal of Antibiotics
1995.0

Abstract

Eight new components of terpendoles E to L were isolated and characterized from the culture broth of Albophoma yamanashiensis using a different production medium. All the structures were elucidated by spectroscopic analyses including various NMR experiments, indicating that all the terpendoles have the same indoloditerpene core as terpendoles A to D. Terpendoles J, K and L showed the moderate inhibition against acyl-CoA: cholesterol acyltransferase (ACAT) activity with IC50 values of 38.8, 38.0 and 32.4 microM in rat liver microsomes, respectively. But terpendoles E-I showed weak activities (IC50 145-388 microM).

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