Trifluoroacetic acid → HCID 25175220, compound

Participants

Reaction Steps

tert-Butyl(R)-4-(3-(isoquinolin-6-yl)-1,2,4-oxadiazol-5-yl)-1-(4-(trifluoromethyl)phenyl)butan-2-ylcarbamate (0.016 g, 0.03 mmol) was treated with TFA (1 mL, 13 mmol) in 1 mL DCM for 1 hour. After removing the solvent and making the remaining residue basic with 2M ammonia in MeOH, the residue was subjected to a silica gel plug using 3% 2M ammonia in MeOH in DCM as the eluant to yield an off-white solid as the desired product. LCMS (API-ES) m/z (%): 413.0 (100%, M++H); 1H NMR (400 MHz, CD3OD) δ ppm 2.07-2.18 (m, 1H) 2.22 (s, 1H) 2.95-3.03 (m, 1H) 3.05-3.13 (m, 1H) 3.17-3.28 (m, 2H) 3.48-3.58 (m, 1H) 7.52 (d, J=7.53 Hz, 2H) 7.68 (d, J=8.03 Hz, 2H) 7.95 (d, J=5.52 Hz, 1H) 8.23-8.31 (m, 2H) 8.54 (d, J=6.02 Hz, 1H) 8.64 (s, 1H) 9.33 (s, 1H).

Provenance & Evidence