Trifluoroacetic acid → HCID 90418705, compound

Participants

Reaction Conditions

Reaction Steps

Into a 50-mL round-bottom flask, was placed ethyl 3-(4-[[3-chloro-5-(4-ethylphenyl)-1,2-thiazol-4-yl]methoxy]-3,5-difluorophenyl)propanoate (20 mg, 0.04 mmol, 1.00 equiv, 90%), TFA (0.5 mL), CH2Cl2 (2 mL). The resulting solution was stirred overnight at 25° C. The resulting mixture was concentrated under vacuum. The crude product (2 mL) was purified by Prep-HPLC with the following conditions: Column, SunFire Prep C18, Sum, 19*100 mm; mobile phase, Water of 0.05% TFA and CH3CN (40% CH3CN up to 100% in 6 min, hold 100% in 2 min, down to 40% in 0.1 min, hold 40% in 1.9 min); Detector, UV 220&254 nm. This resulted in 10 mg (59%) of 3-(4-[[3-chloro-5-(4-ethylphenyl)-1,2-thiazol-4-yl]methoxy]-3,5-difluorophenyl)propanoic acid as a brown solid. 1H NMR (400 MHz, CD3OD) δ 7.49 (d, J=8.0 Hz, 2H), 7.38 (d, J=8.0 Hz, 2H), 6.83 (d, J=9.2 Hz, 2H), 5.10 (s, 2H), 2.87 (t, J=7.2 Hz, 2H), 2.75 (q, J=7.2, 15.2 Hz, 2H), 2.61 (t, J=7.6 Hz, 2H), 1.30 (t, J=7.6 Hz, 3H). Mass spectrum (ESI, m/z): Calcd. for C21H18ClF2NO3S, 438.1 (M+H). found 438.2.

Provenance & Evidence