首页|(+)/(-)-Mycosphatide A,a pair of highly oxidized polyketides with lipid-lowering activity from the mangrove endophytic fungus Mycosphaerella sp.SYSU-DZG01
(+)/(-)-Mycosphatide A,a pair of highly oxidized polyketides with lipid-lowering activity from the mangrove endophytic fungus Mycosphaerella sp.SYSU-DZG01
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(±)-Mycosphatide A(1a/1b),a pair of highly oxidized enantiomeric polyketides featuring a unique 5/5/6/5-fused tetracyclic ring system,were isolated from the mangrove endophytic fungus Mycosphaerella sp.SYSU-DZG01.Their structures were established by extensive spectroscopic analyses,single crystal X-ray diffraction,and experimental electronic circular dichroism(ECD)spectra comparison.The plausible biosynthetic pathway of 1 was proposed,which involved the generation of a key spiro[4.5]decane scaf-fold.Compounds(+)-1a and(-)-1b exhibited significant lipid-lowering activity in 3T3-L1 adipocytes model,with EC50 values of 7.85±1.56 and 8.87±0.80 μmol/L,respectively.
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