Stereospecific synthesis of a carbene-generating angiotensin II analogue for comparative photoaffinity labeling: improved incorporation and absence of methionine selectivity.

Abstract excerpt

A stereospecific convergent synthesis of N-[(9-fluorenyl)methoxycarbonyl]-p-[3-(trifluoromethyl)-3H-diazirin-3-yl]-l-phenylalanine (Fmoc-12, Fmoc-Tdf) and its incorporation into the C-terminal position of the angiotensin II (AngII) peptide to form (125)I[Sar(1),Tdf(8)]AngII ((125)I-13) is presented. This amino acid photoprobe is a highly reactive carbene-generating diazirine phenylalanine derivative that can be...

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