(S)-2-amino-3-(4-fluorobenzyloxy)-N-(4-(4-fluorophenoxy)phenyl)propanamide → (S)-3-(4-fluorobenzyloxy)-N-(4-(4-fluorophenoxy)phenyl)-2-(2-(2-phenyloxazol-4-yl)acetamido)propanamide

Participants

Reaction Steps

Proceeding as in Example 1, but substituting 2-(2-phenyloxazol-4-yl)acetic acid hydrochloride and (S)-2-amino-3-(4-fluorobenzyloxy)-N-(4-(4-fluorophenoxy)phenyl)propanamide, gave Compound 44, (S)-3-(4-fluorobenzyloxy)-N-(4-(4-fluorophenoxy)phenyl)-2-(2-(2-phenyloxazol-4-yl)acetamido)propanamide (160 g, 70%). 1H-NMR (400 MHz, CDCl3): σ 8.45 (s, 1H), 8.00 (m, 2H), 7.50-7.45 (m, 2H), 7.40-7.30 (m, 7H), 7.05-6.80 (m, 8H), 4.79-4.73 (m, 1H), 4.63 (m, 2H), 4.00-3.70 (m, 4H). MS (EI) for C33H27F2N3O5 found 584 (MH+).

Provenance & Evidence