反应详情

To a solution of the hydrochloride salt of 3-methoxy-4-[(2-methyl-3-oxo-6-propan-2-yl-2,6,8,10-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-9-yl)amino]benzoic acid (Example 204; 127 mg, 0.33 mmol) and 1-(2-aminoethyl)piperidine (Aldrich, 54 uL, 0.38 mmol) and DIPEA (157 uL, 0.9 mmol) in anhydrous DMA (10 mL) at room temperature under nitrogen was added HATU (126 mg, 0.33 mmol) as a solid and the resulting solution stirred at room temperature overnight. The reaction mixture was loaded onto a SCX-3 column pre-wet with Methanol and the column washed with Methanol. The column was eluted with Ammonia in Methanol and product containing fractions evaporated. The resultant material was dissolved in dichloromethane and chromatographed with 2-5-10-20% methanol/dichloromethane followed by 7N ammonia/methanol. Evaporation of product containing fractions gave a yellow foam which was purified by reverse phase HPLC to yield the title compound as an off white gum (75 mg, 46%)

1. washthe column washed with Methanol
2. washThe column was eluted with Ammonia in Methanol and product
3. additioncontaining fractions
4. customevaporated
5. dissolutionThe resultant material was dissolved in dichloromethane
6. customchromatographed with 2-5-10-20% methanol/dichloromethane
7. customEvaporation of product
8. additioncontaining fractions
9. customgave a yellow foam which
10. customwas purified by reverse phase HPLC