反应详情

iPrMgCl (3.84 mL, 7.56 mmol; 1.97 M solution in THF) was added to iodo-pyrrolopyrimidine (0.882 g, 3.6 mmol) in THF (5 mL) at −78° C. After 15 min, it was warmed to room temperature and added 2,6-dimethylphenymagnesium bromide (2.4 mL, 2.4 mmol; 1.0 M solution in diethyl ether). To this reaction mixture at room temperature was added a sodium salt THF solution of 4-chloro-2-(4-chloro-3-trifluoromethyl-benzenesulfonylamino)-N-methoxy-N-methyl-benzamide [prepared separately by adding 60% NaH (0.144 g, 3.6 mmol) in THF (5 mL)] and stirred overnight. Saturated NH4Cl solution (5 mL) was added and extracted with EtOAc (2×50 mL). EtOAc layer was washed with brine (25 mL), dried (Na2SO4) and evaporated. Crude product was purified by column purification (silica gel, 60% EtOAc in hexanes) followed by recrystallization from CH3CN to obtain title compound (1 g) as a crystalline yellow solid in 67% yield. MS (ES) M+H expected 515.0. found 514.9. 1H NMR (CDCl3, 400 MHz): δ 10.75 (s, 1H), 9.92 (brs., 1H), 8.92 (d, 1H), 8.05 (s, 1H), 7.92 (dd, 1H), 7.81 (m, 2H), 7.58 (m, 1H), 7.45 (dd, 1H), 7.3 (d, 1H), 6.9 (m, 1H).

1. customprepared separately
2. extractionextracted with EtOAc (2×50 mL)
3. washEtOAc layer was washed with brine (25 mL)
4. dry with materialdried (Na2SO4)
5. customevaporated
6. customCrude product was purified by column purification (silica gel, 60% EtOAc in hexanes)
7. customfollowed by recrystallization from CH3CN