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. Author manuscript; available in PMC: 2016 Nov 4.
Published in final edited form as: Chembiochem. 2014 Dec 2;16(1):70–75. doi: 10.1002/cbic.201402548

Scheme 1.

Scheme 1

Esterases activate, or “turn-on,” AM ether-masked fluorogenic probes. The hydroxymethyl ether intermediate (not shown) spontaneously decomposes following ester hydrolysis, which releases free fluorophore. Fluorogenic probes of this design are useful for examining enzymes in complex mixtures (e.g., cell lysates or living cells).