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The introduction of an article about pyripyropenes:" Fungal metabolite pyripyropenes isolated from Aspergillusfumigatus FO- 1289 were originally found to be
potent acyl-CoA : cholesterol acyltransferase (ACAT) inhibitors. During studies on chemical modification and structure-activity relationships of pyripyropenes to develop potent ACAT inhibitors, more than 300 derivatives were synthesized. Recently, Wang et al. reported that pyripyropene A (1) was obtained from a metabolite of Eupenicillium reticulisporum NRRL3446 in the course of antiinsectan screening. Furthermore, structurally related analogs of 1 were presented as microtuble-disrupting anticancer drugs. Herein we describe the potential in reversing multidrug resistance (MDR) by pyripyropene
derivatives in drug-resistant cells."
The article is from The journal of antibiotics, 2000, 422-425 by Obata.