反应详情

The product of step 2 (450 mg, 1.60 mmol, 1 equiv) was combined with 1H-indazol-5-amine (212 mg, 1.60 mmol, 1 equiv) and polystyrene-bound carbodiimide (1.78 g, 1.1 mmol/g, 1.97 mmol, 1.2 equiv) in 6 mL DMF. The reaction mixture was stirred for 22 hours at room temperature. The resin was removed by filtration and washed alternately with CH2Cl2 and MeOH, ending with CH2Cl2. The volatile solvents were removed en vacuo and water was added, providing a solid residue. The residue was triturated with ethyl acetate, affording 140 mg of the title compound as a white crystalline solid. MS (ES+) m/e 397 [M+H]+

1. customThe resin was removed by filtration
2. washwashed alternately with CH2Cl2 and MeOH
3. customThe volatile solvents were removed en vacuo and water
4. additionwas added
5. customproviding a solid residue
6. customThe residue was triturated with ethyl acetate