反应详情

Prepared using General Procedure 6: To a stirring solution of 2-(4-(methoxycarbonyl)phenyl)acetic acid (300 mg, 1.54 mmol) were added HOBt (417 mg, 3.09 mmol), EDC (593 mg, 3.09 mmol) and DIEA (539 μL, 3.09 mmol). After 1.5 h, 4-methoxy-2-(trifluoromethyl)aniline (325 mg, 1.70 mmol) was added. After stirring for 14 h, the mixture was diluted with NaHCO3 and extracted with EA. The combined organic extracts were dried (Na2SO4), concentrated, and purified by chromatography (EA/hexanes) to provide 114 mg (31%) of methyl 4-(2-((4-methoxy-2-(trifluoromethyl)phenyl)amino)-2-oxoethyl)benzoate INT-54. LCMS-ESI (m/z) calculated for C18H16F3NO4: 367; found 368 [M+H]+, tR=3.27 min (Method 1). 1H NMR (400 MHz, CDCl3) δ 8.09 (d, J=8.3 Hz, 2H), 7.91 (d, J=8.4 Hz, 1H), 7.40 (t, J=14.6 Hz, 2H), 7.13 (s, 1H), 7.09-6.96 (m, 2H), 3.92 (d, J=10.8 Hz, 3H), 3.81 (m, 5H).

1. customPrepared
2. extractionextracted with EA
3. dry with materialThe combined organic extracts were dried (Na2SO4)
4. concentrationconcentrated
5. custompurified by chromatography (EA/hexanes)