Article ID Journal Published Year Pages File Type
5212907 Tetrahedron 2016 6 Pages PDF
Abstract

A new pseurotin A3 (3), which was obtained from the fungus Aspergillus terreus was converted into its acetyl derivative (4). Optical rotation (OR), 13C NMR, electronic circular dichroism (ECD) and vibrational circular dichroism (VCD) were measured for (+)-4 and computed for four possible isomers using quantum theory. Absolute configuration of (+)-4 was finally assigned as (5S,8S,9R,10S,11R,12Z) by comparing the predicted OR, ECD and VCD spectra to the experimental data. Therefore, the new compound 3 should have the (5S,8S,9R,10S,11R,12Z) too.

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Related Topics
Physical Sciences and Engineering Chemistry Organic Chemistry
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