反应详情

温度

65 °C

Dissolve 3-tert-butoxycarbonyl-6-(5-bromopyridin-2-ylmethylthio)-7-chloro-2,3,4,5-tetrahydro-1H-benzo[d]azepine (1.0 g, 2.07 mmol), tetrakistriphenylphosphine palladium(0) (120 mg, 0.104 mmol), cuprous iodide (20 mg, 0.105 mmol), triethylamine (2.60 mL) and 1-ethynyl-4-fluorobenzene (500 mg, 4.16 mmol) in DMF (8 mL). Degas the mixture, purge with nitrogen, and heat at 65° C. for 3 days. Dilute the mixture with water, extract three times with EtOAc, dry over anhydrous Na2SO4, and concentrate in vacuo. Purify by chromatography on silica gel eluting with hexane/EtOAc (50:1) to give 3-tert-butoxycarbonyl-7-chloro-6-[5-(4-fluorophenylethynyl)-pyridin-2-ylmethylthio]-2,3,4,5-tetrahydro-1H-benzo[d]azepine as a tan foam (1.02 g, 95%). MS (APCI+) m/z: 523 (M+H)+, 423 (M+H-Boc)+. Use a method similar to the General Procedure 1-4 to give the title compound as a tan powder. MS (APCI+) m/z: 423 (M+H)+.

1. customDegas the mixture
2. custompurge with nitrogen
3. additionDilute the mixture with water
4. extractionextract three times with EtOAc
5. dry with materialdry over anhydrous Na2SO4
6. concentrationconcentrate in vacuo
7. customPurify by chromatography on silica gel eluting with hexane/EtOAc (50:1)