4-Amino-1-butanol → HCID 57470629, compound
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.[NH2:12][CH2:13][CH2:14][CH2:15][CH2:16][OH:17].C(Cl)Cl.CO.[NH4+].[OH-]>>[Br:1][C:2]1[N:6]2[N:7]=[C:8]([NH:12][CH2:13][CH2:14][CH2:15][CH2:16][OH:17])[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 4-aminobutan-1-ol according to general procedure 1 providing the intermediate (150 mg, 82%) as a yellow solid: Rf=0.45 (CH2Cl2/MeOH/NH4OH, 160:18:2); 1H NMR (500 MHz, CD3OD) δ 7.53 (d, J=9.7 Hz, 1H), 7.38 (s, 1H), 6.68 (d, J=9.7 Hz, 1H), 3.62 (t, J=6.6 Hz, 2H), 3.40 (t, J=6.9 Hz, 2H), 1.77-1.72 (m, 2H), 1.69-1.64 (m, 2H).
Sources & evidence
- ORD record
- ord-5e88c2aa03d646f5a7b7a9633f8203cc
- Source dataset
- uspto-grants-2010_10
- Patent number
- US07820670B2
Reaction notes
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