Achaetolide-II isolated from Helminthosporium velutinum TS28. Issue 41 (14th October 2015) - Arayama, Miki
Abstract: A C3- O -acylated analogue of achaetolide (2 ) was isolated from phytopathogenic fungus Helminthosporium velutinum TS28. The relative configuration involving the C3- O -acyl side chain was determined by NMR spectroscopic analysis combined with conformational analysis computer-assisted chemical shift calculations. The absolute configuration was established through ECD analysis after conversion into the dibenzoate (5 ). Graphical abstract: