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. Author manuscript; available in PMC: 2019 Jul 19.
Published in final edited form as: Nat Prod Rep. 2019 May 21;36(7):944–959. doi: 10.1039/c9np00019d

Fig. 5.

Fig. 5.

The incorporation of fluorinated amino acids can be observed through droplet probe analysis. Top panel shows full-scan MS data of the control experiment. Bottom panel shows full-scan MS data of the fluorinated analogue of acetylaszonalenin (7), which was generated via precursor-directed biosynthesis by incorporating fluorinated Trp into the media. The inset of both panels highlights [M+H]+ and [M+Na]+ for 6 and 7. Signals in green are for ions associated with the parent (6), while signals in red are for ions associated with the fluorinated analogue (7).