Overturning the Peribysin Family Natural Products Isolated from Periconia byssoides OUPS-N133: Synthesis and Stereochemical Revision of Peribysins A, B, C, F, and G
2020
Athawale, Paresh R. | Kalmode, Hanuman P. | Motiwala, Zenia | Kulkarni, Kiran A. | Reddy, D Srinivasa
Herein we report the stereochemical revision of peribysins A, B, C, F, and G, guided by enantiospecific total synthesis starting from (+)-nootkatone. Furthermore, we reconfirmed the absolute stereochemistry of peribysin Q. The highlights of the synthesis are enone transposition and kinetic iodination resulting in separation of diastereomers. Our findings coupled with synthetic and biological data previously reported by Danishefsky’s group suggest that the original stereochemistries of peribysins A, B, C, F, and G were misassigned.
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