Biosynthesis of Polycyclic Natural Products from Conjugated Polyenes via Tandem Isomerization and Pericyclic Reactions.
Journal of the American Chemical Society(2023)
摘要
We report biosynthetic pathways that can synthesize and transform conjugated octaenes and nonaenes to complex natural products. The biosynthesis of (-)-PF1018 involves an enzyme PfB that can control the regio-, stereo-, and periselectivity of multiple reactions starting from a conjugated octaene. Using PfB as a lead, we discovered a homologous enzyme, BruB, that facilitates diene isomerization, tandem 8π-6π-electrocyclization, and a 1,2-divinylcyclobutane Cope rearrangement to generate a new-to-nature compound.
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关键词
polycyclic natural products,conjugated polyenes,biosynthesis,natural products
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