Trifluoroacetic acid → HCID 178462175, compound

Participants

Reaction Steps

This was similarly prepared, as described in Example 1. Boc-D-alanine N-hydroxysuccinimide ester was coupled to Phe-Arg-β-naphthylamide dihydrochloride; the resultant Boc-D-Ala-Phe-Arg 2-naphthylamide was deprotected with trifluoroacetic acid to afford a white solid: 1H NMR (400 MHz, D2O ) δ1.43 (d, J=8.8 Hz, 3H), 1.74 (m, 2H), 1.90 (m, 1H), 1.99 (m, 1H), 3.17 (dd, J=12.9; 8.2 Hz, 1H), 3.21 (dd, J=12.3; 8.2 Hz, 1H), 3.29 (t, J=7.1 Hz, 2H), 4.13 (q, J=8.8 Hz, 1H), 5.50 (t, J=8.0 Hz, 1H), 4.81 (HOD with proton hidden), 7.18 (m, 1H), 7.29 (m, 4H), 7.58 (d, J=10.6 Hz, 1H), 7.63 (m, 2H), and 8.01 (m, 4H).

Provenance & Evidence