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. Author manuscript; available in PMC: 2013 Nov 15.
Published in final edited form as: Free Radic Biol Med. 2012 Aug 31;53(10):1877–1885. doi: 10.1016/j.freeradbiomed.2012.08.582

Figure 1.

Figure 1

Reaction scheme for fluorogenic derivatization of protein 3-NT or DOPA with ABS to form a protein-linked sulfophenylbenzoxazole product. The introduction of either an amino (R = H) or a second benzylamino (R = CH2-Ph-SO3H) substituent into the final benzoxazole depends on the reaction conditions [39].