反应详情

(E)-3,5-diamino-6-chloro-N-(8-azaspiro[bicyclo[3.2.1]octane-3,4′-imidazolidine]-2′-ylidene)pyrazine-2-carboxamide (170 mg, 0.49 mmol) is dissolved in DMF (10 ml) along with HATU (184 mg, 0.49 mmol) and 4-indole-carboxylic acid (78 mg, 0.49 mmol). N-Methyl morpholine (160 ml, 1.45 mmol) is added and the solution stirred at room temperature overnight. The mixture is then concentrated in vacuo. EtOAc (100 ml) is added and the solution washed with water (100 ml). The organic phase is dried (MgSO4) and concentrated in vacuo. Purification by flash chromatography (SiO2, DCM/MeOH) gives the title compound as a yellow solid; [M+H]+ 494.15, 496.27 for Cl isotopes.

1. concentrationThe mixture is then concentrated in vacuo
2. additionEtOAc (100 ml) is added
3. washthe solution washed with water (100 ml)
4. dry with materialThe organic phase is dried (MgSO4)
5. concentrationconcentrated in vacuo
6. customPurification by flash chromatography (SiO2, DCM/MeOH)