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Nine new phenalenone derivatives (1–9), along with two known analogues (10−11) have been isolated from the solid cultures of an endophytic fungus Aspergillus sp. which was obtained from Pinellia ternate. Their structures were established through interpretations of spectroscopic evidence, and some of their absolute configurations were determined by electronic circular dichroism (ECD) and Mo2(OCOCH3...
Three new indole diketopiperazine alkaloids, named aspertryptanthrins A–C (1–3), were isolated from a terrestrial-derived endophytic fungus Aspergillus sp. Their structures were established by spectral methods, and the absolute configurations were determined via the Rh 2 (OCOCF 3 ) 4 induced ECD spectra and the comparison of experimental and calculated ECD spectra. Belonging...
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