1-Amino-1-methylurea → 1-[(E)-1-[3-[(7-fluoroquinolin-6-yl)methyl]imidazo[1,2-b]pyridazin-6-yl]ethylideneamino]-1-methylurea
Reaction equation
[CH3:1][N:2]([C:4]([NH2:6])=[O:5])[NH2:3].[F:7][C:8]1[CH:17]=[C:16]2[C:11]([CH:12]=[CH:13][CH:14]=[N:15]2)=[CH:10][C:9]=1[CH2:18][C:19]1[N:23]2[N:24]=[C:25]([C:28](=O)[CH3:29])[CH:26]=[CH:27][C:22]2=[N:21][CH:20]=1>>[F:7][C:8]1[CH:17]=[C:16]2[C:11]([CH:12]=[CH:13][CH:14]=[N:15]2)=[CH:10][C:9]=1[CH2:18][C:19]1[N:23]2[N:24]=[C:25](/[C:28](=[N:3]/[N:2]([CH3:1])[C:4]([NH2:6])=[O:5])/[CH3:29])[CH:26]=[CH:27][C:22]2=[N:21][CH:20]=1Participants
3
Procedure
The title compound was prepared from 1-methylhydrazine carboxamide and 1-[3-(7-fluoro-quinolin-6-ylmethyl)-imidazo[1,2-b]pyridazin-6-yl]-ethanone in analogy to the synthesis of example 1 in 21% yield. 1H-NMR (400 MHz, DMSO-d6) δ ppm 8.86 (dd, 1H), 8.31 (d, 1H), 8.05 (s, 2H), 7.97 (d, 1H), 7.77 (d, 1H), 7.72 (s, 1H), 7.47 (q, 1H), 6.54 (s, 2H), 4.58 (s, 2H), 3.19 (s, 3H), 2.37 (s, 3H). LCMS (method A): [MH]+=392, tR=4.76 min.