Cl.C([O:4][C:5](=[O:19])[CH2:6][CH2:7][CH2:8][N:9]([CH2:17][CH3:18])[C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([CH3:16])[CH:11]=1)C>O1CCOCC1.O>[CH2:17]([N:9]([CH2:8][CH2:7][CH2:6][C:5]([OH:19])=[O:4])[C:10]1[CH:15]=[CH:14][CH:13]=[C:12]([CH3:16])[CH:11]=1)[CH3:18]4N Solution (100 ml) of hydrogen chloride in dioxane and water (20 ml) was added to the compound (14.1 g) obtained in Step 1, and the mixture was stirred at 95° C. for 12 hours. The solvent was evaporated to give the title compound (13.7 g).
Wird geladen…