1,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine) → (5-Bromo-imidazo[1,2-a]pyrazin-8-yl)-(5-morpholin-4-yl-pyridin-2-yl)-amine

HRID 1921834

Reaction equation

HRID 1921834 reaction equation
[Br:1][C:2]1[N:7]2[CH:8]=[CH:9][N:10]=[C:6]2[C:5](Br)=[N:4][CH:3]=1.[N:12]1([C:18]2[CH:19]=[CH:20][C:21]([NH2:24])=[N:22][CH:23]=2)[CH2:17][CH2:16][O:15][CH2:14][CH2:13]1.CC([O-])(C)C.[Na+].CC1(C)C2C(=C(P(C3C=CC=CC=3)C3C=CC=CC=3)C=CC=2)OC2C(P(C3C=CC=CC=3)C3C=CC=CC=3)=CC=CC1=2>C1(C)C=CC=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[Br:1][C:2]1[N:7]2[CH:8]=[CH:9][N:10]=[C:6]2[C:5]([NH:24][C:21]2[CH:20]=[CH:19][C:18]([N:12]3[CH2:13][CH2:14][O:15][CH2:16][CH2:17]3)=[CH:23][N:22]=2)=[N:4][CH:3]=1

Participants

7

Reactant 4

HCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 113673465-Morpholinopyridin-2-amineHCID 23676156Sodium t-butoxideHCID 534859495,8-Dibromoimidazo[1,2-a]pyrazine

Product 1

HCID 59023091(5-Bromo-imidazo[1,2-a]pyrazin-8-yl)-(5-morpholin-4-yl-pyridin-2-yl)-amine

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 1140TolueneSolvent

Procedure

In the same way as described for compound 90, step 1, using 5,8-dibromo-imidazo[1,2-a]pyrazine (0.4 g, 1.45 mmol), 5-morpholin-4-yl-pyridin-2-ylamine (0.258 g, 1.23 mmol), NaOtBu (0.19 g, 2.04 mmol), Pd2dba3 (0.053 g, 0.058 mmol) and Xantphos (0.067 g, 0.116 mmol) in toluene (6 mL). After removing the solvent in vacuo, the mixture is purified by silica gel column chromatography eluting with 1:4 petroleum ether:ethyl acetate followed by 99:1 DCM:NH3 (7M in MeOH). The title compound is isolated (216.4 mg, 47%). LCMS: Rt 2.16 min (93.2%).

Workup

  1. customAfter removing the solvent in vacuo
  2. customthe mixture is purified by silica gel column chromatography
  3. washeluting with 1:4 petroleum ether

Sources & evidence

ORD record
ord-e2c27157be6e4b219a36f79d96e1912f
Source dataset
uspto-grants-2012_05
Patent number
US08173656B2

Linked notes

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