[NH2:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][CH2:12][NH:13][C:14](=[O:16])[CH3:15].Cl[C:18]([O:20][CH2:21][CH:22]=[CH2:23])=[O:19]>>[CH2:21]([O:20][C:18](=[O:19])[NH:1][C:2]1[CH:3]=[C:4]2[C:8](=[CH:9][CH:10]=1)[NH:7][CH:6]=[C:5]2[CH2:11][CH2:12][NH:13][C:14](=[O:16])[CH3:15])[CH:22]=[CH2:23]The product from example 3 (5 mmol) is then treated with allyl chloroformate in the same manner as above, and purified on silica gel with 5% methanol in chloroform as eluent.
Wird geladen…