2-(1H-1,2,4-triazol-1-yl)acetic acid hydrochloride → (2S,4R)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-(benzyloxy)-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamide

Participants

Reaction Steps

Proceeding as in Example 1, but substituting 2-(1H-1,2,4-triazol-1-yl)acetic acid hydrochloride and (2S,4R)-4-(benzyloxy)-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamide, gave Compound 252, (2S,4R)-1-(2-(1H-1,2,4-triazol-1-yl)acetyl)-4-(benzyloxy)-N-(4-(4-fluorophenoxy)phenyl)pyrrolidine-2-carboxamide (36 mg, 30%). Major isomer: 1H-NMR (400 MHz, DMSO-D6): σ 10.14 (s, 1H), 8.44 (s, 1H), 7.95 (s, 1H), 7.58 (d, 2H), 7.41-7.28 (m, 5H), 7.19 (t, 2H), 7.06-6.92 (m, 4H), 5.27 (q, 2H), 4.58 (d, 2H), 4.49 (t, 1H), 4.40-4.34 (m, 1H), 3.90-3.75 (m, 2H) 2.42-2.22 (m, 1H), 2.11-2.01 (ml H). MS (EI) for C28H26FN5O4. found 516.0 (MH+).

Provenance & Evidence