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2-(4-bromophenyl)-N,N-dimethylacetamide → 2-[4-[[8-(4-fluorophenyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-2-yl]amino]phenyl]-N,N-dimethylacetamide

HRID 421
Notes
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Reaction equation

HRID 421 reaction equation
CN(C)C(=O)Cc1ccc(Br)cc1.Nc1nc2n(n1)CCC[C@@H]2c1ccc(F)cc1>C1COCCO1.CC(=O)O.CC(=O)O.O=C([O-])[O-].[Cs+].[Cs+].[Pd].c1ccc(-c2ccccc2P(C2CCCCC2)C2CCCCC2)cc1>CN(C)C(=O)Cc1ccc(Nc2nc3n(n2)CCCC3c2ccc(F)cc2)cc1
ParticipantsConditionsProcedureSources & evidenceReaction notes

Participants

7

Reactant 2

HCID 46315952-(4-bromophenyl)-N,N-dimethylacetamideHCID 178418219HCID 178418219, compound

Product 1

HCID 1187179612-[4-[[8-(4-fluorophenyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-2-yl]amino]phenyl]-N,N-dimethylacetamideYield 32.03%

Reagents, catalysts & solvents 4

HCID 10796Cesium carbonateReagent
HCID 2734216
2-(Dicyclohexylphosphino)biphenyl
Catalyst
HCID 4144353Palladium (II) acetateCatalyst
HCID 312751,4-DioxaneSolvent

Conditions

Temperature
120 °C

Procedure

8-(4-fluorophenyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-2-amine (94 mg, 0.40 mmol), 2-(4-bromophenyl)-N,N-dimethylacetamide (103 mg, 0.40 mmol), Cesium carbonate (198 mg, 0.61 mmol), Palladium(II) acetate (9.09 mg, 0.04 mmol) and 2-(Dicyclohexylphosphino)biphenyl (14.18 mg, 0.04 mmol) were added to a 0.5-2 mL microwave vial. The vial was capped and flushed with nitrogen. dioxane (3 mL) was added and the vial was flushed with additional nitrogen before it was heated by microwave irradiation at 120°C for 1.5h. The reaction mixture was cooled to r.t. and water and EtOAc were added and the layers were separated. The aqueous phase was extracted with EtOAc (3x). The combined organic phases were washed with brine, dried (phase separator) and the solvent was removed under reduced pressure. The crude product was purified by silica gel column chromatography using a gradient of 0-3% MeOH in EtOAc over 12 min. The desired fractions were combined to result in 2-(4-(8-(4-fluorophenyl)-5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-a]pyridin-2-ylamino)phenyl)-N,N-dimethylacetamide (51.0 mg, 32.0 %)

Sources & evidence

ORD record
ord-31e2f0a986f6432689bfa64e01da3c0f
Source dataset
750 AstraZeneca ELN dataset
Original link
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Reaction notes

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