(5-Bromoimidazo[1,2-a]pyrazin-8-yl)-(4-(4-methylpiperazin-1-yl)phenyl)amine → 3-Fluoro-4-{8-[4-(4-methylpiperazin-1-yl)phenylamino]imidazo[1,2-a]pyrazin-5-yl}benzamide

HRID 1921757Notes

Reaction equation

HRID 1921757 reaction equation
[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][C:10]=1B1OC(C)(C)C(C)(C)O1)[C:5]([NH2:7])=[O:6].Br[C:21]1[N:26]2[CH:27]=[CH:28][N:29]=[C:25]2[C:24]([NH:30][C:31]2[CH:36]=[CH:35][C:34]([N:37]3[CH2:42][CH2:41][N:40]([CH3:43])[CH2:39][CH2:38]3)=[CH:33][CH:32]=2)=[N:23][CH:22]=1>O1CCOCC1.CN(C=O)C.C([O-])([O-])=O.[Na+].[Na+].C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[F:1][C:2]1[CH:3]=[C:4]([CH:8]=[CH:9][C:10]=1[C:21]1[N:26]2[CH:27]=[CH:28][N:29]=[C:25]2[C:24]([NH:30][C:31]2[CH:32]=[CH:33][C:34]([N:37]3[CH2:38][CH2:39][N:40]([CH3:43])[CH2:41][CH2:42]3)=[CH:35][CH:36]=2)=[N:23][CH:22]=1)[C:5]([NH2:7])=[O:6]

Participants

7

Reactant 2

HCID 59022979(5-Bromoimidazo[1,2-a]pyrazin-8-yl)-(4-(4-methylpiperazin-1-yl)phenyl)amineHCID 671174863-Fluoro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzamide

Product 1

HCID 590230503-Fluoro-4-{8-[4-(4-methylpiperazin-1-yl)phenylamino]imidazo[1,2-a]pyrazin-5-yl}benzamide

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 6228DimethylformamideSolventHCID 10340Sodium CarbonateSolventHCID 312751,4-DioxaneSolvent

Procedure

In the same way as described for Compound 127, step 4, using 3-fluoro-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)benzamide (82 mg, 0.31 mmol), (5-bromoimidazo[1,2-a]pyrazin-8-yl)-(4-(4-methylpiperazin-1-yl)phenyl)amine (60 mg, 0.155 mmol) and Pd(PPh3)4 (45 mg, 0.038 mmol) in dioxane (0.68 mL), DMF (1.52 mL) and 1.5M Na2CO3 (0.83 mL). The residue is chromatographed on silica gel, eluting with DCM followed by 95:5 DCM:NH3 (7M in MeOH), and the fractions containing the desired product are combined and evaporated. The title compound is isolated as a solid. HPLC (254 nm): Rt 1.92 min (95.0%); m/z (APCI) 446 (M+H)+.

Workup

  1. customThe residue is chromatographed on silica gel
  2. washeluting with DCM
  3. additionNH3 (7M in MeOH), and the fractions containing the desired product
  4. customevaporated

Sources & evidence

ORD record
ord-5cbbf2da3c0c45ec8a66cbac11746af1
Source dataset
uspto-grants-2012_05
Patent number
US08173656B2

Reaction notes

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