反应详情

温度

100 °C

N-(5-bromo-2-chloropyridin-3-yl)-2-chloro-6-methylbenzenesulfonamide (210 mg, 0.530 mmol), N-methyl-6-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzo[d]thiazol-2-amine (101.6 mg, 0.350 mmol), potassium carbonate (250 mg, 1.81 mmol), and Pd(dppf) Cl2*DCM complex (62.6 mg, 0.0768 mmol) were suspended in DME (2.0 ml) and water (0.5) ml. The reaction flask was fit with a reflux condensor and placed in a preheated oil bath (100° C.) and stirred under nitrogen for 1 hour. The reaction was cooled to room temperature, and the aqueous phase was removed via pipette. The reaction was then concentrated and filtered through a silica gel plug with 5:1 to 3:1 DCM/2 N ammonia in MeOH. The filtrate was concentrated and purified on HPLC (10% to 100% MeCN/water with 0.1% TFA over 30 minutes) to afford 2-chloro-N-(2-chloro-5-(2-(methylamino)benzo[d]thiazol-6-yl)pyridin-3-yl)-6-methylbenzenesulfonamide (35.6 mg, 21% yield). MS (ESI pos. ion) m/z: 479 (MH+). Calc'd exact mass for C20H16Cl2N4O2S2: 478.

1. customplaced in a preheated oil bath
2. temperatureThe reaction was cooled to room temperature
3. customthe aqueous phase was removed via pipette
4. concentrationThe reaction was then concentrated
5. filtrationfiltered through a silica gel plug with 5:1 to 3:1 DCM/2 N ammonia in MeOH
6. concentrationThe filtrate was concentrated
7. custompurified on HPLC (10% to 100% MeCN/water with 0.1% TFA over 30 minutes)