Sodium Hydroxide → (S)-2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)-2-oxopyridin-1(2H)-yl)benzo[d]thiazol-6-yl)acetic acid

Participants

Reaction Conditions

Reaction Steps

To a stirred solution of (S)-methyl 2-tert-butoxy-2-(7-(4-chlorophenyl)-5-methyl-2-(3-(1-methyl-1H-indazol-5-yl)-2-oxopyridin-1(2H)-yl)benzo[d]thiazol-6-yl)acetate (12.6 mg, 0.020 mmol) in THF (1.2 mL) and methanol (0.5 mL) was added 1 M NaOH solution (0.3 mL, excess). The reaction mixture was stirred at 37° C. for 6 h. The reaction mixture was purified by reverse phase HPLC (Gemini, 5 to 100% ACN/H2O+0.1% TFA) to give the product. LCMS-ESI+ (m/z): [M+H]+ calcd for C33H30ClN4O4S: 613.17; Found: 613.2; 1H-NMR: 400 MHz, (CD3OD) δ 8.89 (dd, J=7.6, 2 Hz, 1H), 8.02 (s, 2H), 7.75 (s, 1H), 7.70-7.63 (m, 3H), 7.53-7.49 (m, 4H), 6.61 (t, J=7.2 Hz, 1H), 5.27 (s, 1H), 4.06 (s, 3H), 2.60 (s, 3H), 0.95 (s, 9H).

Provenance & Evidence