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. 2022 Oct 31;13:6522. doi: 10.1038/s41467-022-34340-3

Fig. 7. The proposed complex pathways for generating the 4(3H)-quinazolinone scaffold in 1 synthesis.

Fig. 7

The primary pathway shows unexpected assembly machinery starting from a linear tripeptide and the salvage pathway depends on the promiscuous substrate selectivity of ftchy cluster enzymes.