[C:1]([C:4]1O[CH:6]=[CH:7][CH:8]=1)(=O)[CH3:2].COC(OC)N(C)C.[C:17](=[O:20])(O)O.[NH2:21][C:22]([NH2:24])=[NH:23].C[O-].[Na+].[Br:28]N1C(=O)CCC1=O>CN(C=O)C.CO.C(O)(=O)C>[Br:28][C:1]1[C:4]([C:8]2[O:20][CH:17]=[CH:6][CH:7]=2)=[N:23][C:22]([NH2:24])=[N:21][CH:2]=1From 2-acetylfuran and N,N-dimethylformamide dimethyl acetal in DMF. Then treatment with guanidine carbonate and sodium methylate in methanol. Then treatment with N-bromosuccinimide in acetic acid. EI-MS m/e (%): 241 (M{81Br}+, 98), 239 (M{81Br}+, 100).
Wird geladen…