5-Bromo-2-chloro-3-methylpyridine → HCID 23635534, compound
Reaction equation
[C@@H:1]12[CH2:7][NH:6][C@@H:5]1[CH2:4][N:3]([C:8]([O:10][CH2:11][C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=1)=[O:9])[CH2:2]2.Br[C:19]1[CH:20]=[C:21]([CH3:26])[C:22]([Cl:25])=[N:23][CH:24]=1>>[Cl:25][C:22]1[N:23]=[CH:24][C:19]([N:6]2[CH2:7][C@@H:1]3[C@H:5]2[CH2:4][N:3]([C:8]([O:10][CH2:11][C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)=[O:9])[CH2:2]3)=[CH:20][C:21]=1[CH3:26]Participants
3
Procedure
The product of Example 52D (1.30 g, 5.60 mmol) and 5-bromo-2-chloro-3-methylpyridine (1.73 g, 8.39 mmol) were processed according to the procedure described in Example 1E. The crude product was purified by chromatography (SiO2, ethyl acetate:hexane, 1:1) to provide the title compound (0.22 g, 11% yield) which was used directly in the next step without further purification. MS (DCI/NH3) m/z 358, 360 (M+H)+.
Workup
- customThe crude product was purified by chromatography (SiO2, ethyl acetate:hexane, 1:1)
Sources & evidence
- ORD record
- ord-b09f4d4448df47ab914f852b412b6415
- Source dataset
- uspto-grants-2004_10
- Patent number
- US06809105B2
Reaction notes
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