2-Methoxyethylamine → 3-bromo-N-(2-methoxyethyl)imidazo[1,2-b]pyridazin-6-amine
Reaction equation
[Br:1][C:2]1[N:6]2[N:7]=[C:8](Cl)[CH:9]=[CH:10][C:5]2=[N:4][CH:3]=1.[CH3:12][O:13][CH2:14][CH2:15][NH2:16].C(Cl)Cl.CO.[NH4+].[OH-]>>[Br:1][C:2]1[N:6]2[N:7]=[C:8]([NH:16][CH2:15][CH2:14][O:13][CH3:12])[CH:9]=[CH:10][C:5]2=[N:4][CH:3]=1Participants
4
Procedure
Prepared from 3-bromo-6-chloroimidazo[1,2-b]pyridazine and 2-methoxyethylamine according to general procedure 1 providing the amino compound (432 mg, 74%) as a yellow solid; Rf=0.71 (CH2Cl2/MeOH/NH4OH, 160:18:2); 1H NMR (500 MHz, CD3OD) δ 7.57 (d, J=9.7 Hz, 1H), 7.42 (s, 1H), 6.75 (d, J=9.7 Hz, 1H), 3.68 (t, J=5.4 Hz, 2H), 3.59 (t, J=5.6 Hz, 2H), 3.43 (s, 3H); ES-MS: (M+H)=271, 273 m/z.
Sources & evidence
- ORD record
- ord-8e76ad9371314a34bd698839f683f1d7
- Source dataset
- uspto-grants-2010_10
- Patent number
- US07820670B2
Reaction notes
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