反应详情

5.00 g of 1-Amino-6-aminomethyl-isoquinoline and 6.20 g Boc-L-proline were dissolved in 88 mL DMF. 10.6 g of TBTU was added followed by a dropwise addition of N-methylmorpholine. Stirring was continued for 1 h at ambient temperature and the solvent was removed i.vac. The residue was extracted with 5% aqueous NaHCO3 solution and with ethyl acetate. The organic layer was separated and dried (NaSO4). The solvent was removed to give 10.7 g (quant.) of N-(1-Amino-isoquinolin-6-ylmethyl)-1-tert.butoxycarbonyl-prolinamide as an oil. Without purification, the compound was dissolved in 50 mL dichloromethane and 25.0 mL trifluoroacetic acid was added. Stirring was continued for 16 h and the solvent was removed i.vac. The residue was dissolved in methanol, the solvent was removed i. vac. And the residue was triturated with diethyl ether. The crystalline material was collected to give 12.9 g (89%) of N-(1-amino-isoquinolin-6-ylmethyl)-prolinamide. M.p. 140-142° C..

1. customthe solvent was removed i.vac
2. extractionThe residue was extracted with 5% aqueous NaHCO3 solution and with ethyl acetate
3. customThe organic layer was separated
4. dry with materialdried (NaSO4)
5. customThe solvent was removed