Journal
ORGANIC LETTERS
Volume 6, Issue 21, Pages 3715-3718Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ol048656a
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The synthesis of a photoaffinity probe for EGFR is described. O-Alkylation of 4-(meta-azidoanllino)-6-methoxy-7-hydroxy-quinazoline with a protected tetraethyleneglycol linker followed by the attachment of tetramethylrhodamine yielded the fluorescent probe AX7593. Photoaffinity labeling of EGFR by AX7593 (K-b = 280 nM) was shown to have an efficiency of 34% and to be competitive with the EGFR inhibitors PP2 and AG1478.
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