2'-Ethyl-2-(methoxymethyl)-[1,1'-biphenyl]-4-carboxylic acid → Methyl 4-{5-[2'-ethyl-2-(methoxymethyl)biphenyl-4-yl]-1,2,4-oxadiazol-3-yl}-2-fluorobenzoate

Participants

Reaction Steps

The title compound was prepared following procedure described for example 35, step 1, but starting from Intermediate 36 (1 135.37 mg; 4.20 mmol) and Intermediate 1 (891.15 mg; 4.20 mmol). The reaction mixture was cooled to RT and concentrated affording yellow oil. It was precipitating in ACN. Solvent were removed and the solid was washed with MeOH, filtered off and dried under vacuum to afford the title compound as a white powder. 1H NMR (CDCl3) δ 8.43 (s, 1H), 8.18-7.99 (m, 4H), 7.41-7.35 (m, 3H), 7.29-7.24 (m, 1H), 7.11 (d, J=7.2 Hz, 1H), 4.27-4.17 (m, 2H), 3.98 (s, 3H), 3.34 (s, 3H), 2.50-2.28 (m, 2H), 1.05 (t, J=7.5 Hz, 3H). LC/MS (Method B): 447.2 (M+H)+. HPLC (Method A) Rt 6.14 min (Purity: 99.5%).

Provenance & Evidence