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. 2016 Jul 20;12:1512–1550. doi: 10.3762/bjoc.12.148

Scheme 33.

Scheme 33

a) Biosynthesis of the pyridinone tenellin (234). b) A radical mechanism was proposed for the ring-expansion reaction catalysed by TenA. c) Other fungal pyridinone-containing hybrid iPKS–NRPS natural products [178,180].