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1,3-dimethyl-1H-pyrazol-4-amine → 2-[[2-[(1,3-dimethylpyrazol-4-yl)amino]-5-(trifluoromethyl)-4-pyridyl]amino]-N-methoxy-benzamide

HRID 74
Notes
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Reaction equation

HRID 74 reaction equation
CONC(=O)c1ccccc1Nc1cc(Cl)ncc1C(F)(F)F.Cc1nn(C)cc1N>C1CCCC1.CC(=O)O.CC(=O)O.CC(C1CCCC1P(C1CCCCC1)C1CCCCC1)P(C(C)(C)C)C(C)(C)C.COCCOC.O=C([O-])[O-].[Cs+].[Cs+].[Fe].[Pd]>CONC(=O)c1ccccc1Nc1cc(Nc2cn(C)nc2C)ncc1C(F)(F)F
ParticipantsConditionsProcedureSources & evidenceReaction notes

Participants

7

Reactant 2

HCID 44310561,3-dimethyl-1H-pyrazol-4-amineHCID 1417316742-[[2-chloro-5-(trifluoromethyl)-4-pyridinyl]amino]-N-methoxybenzamide

Product 1

HCID 569514332-[[2-[(1,3-dimethylpyrazol-4-yl)amino]-5-(trifluoromethyl)-4-pyridyl]amino]-N-methoxy-benzamideYield 11.18%

Reagents, catalysts & solvents 4

HCID 10796Cesium carbonateReagent
HCID 4144353
Palladium (II) acetate
Catalyst
HCID 144543273(R)-(-)-1-[(S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldi-t-butylphosphine;Ferrocene, 1-[(1R)-1-[bis(1,1-dimethylethyl)phosphino]ethyl]-2-(dicyclohexylphosphino)-, (2R)-Catalyst
HCID 80711,2-DimethoxyethaneSolvent

Conditions

Temperature
150 °C

Procedure

Palladium(II) acetate (7.79 mg, 0.03 mmol), (R)-(-)-1-[(S)-2-(Dicyclohexylphosphino)ferrocenyl]ethyldi-t-butylphosphine (19.46 mg, 0.03 mmol), Cesium carbonate (0.032 mL, 0.40 mmol), 1,3-dimethyl-1H-pyrazol-4-amine (38.6 mg, 0.35 mmol) and 2-(2-chloro-5-(trifluoromethyl)pyridin-4-ylamino)-N-methoxybenzamide (100 mg, 0.29 mmol) were suspended in DME (2.5 mL) and sealed into a microwave tube. The reaction was heated to 150 °C for 30 minutes in the microwave reactor and cooled to RT. The crude product was purified by ion exchange chromatography, using an SCX column. The desired product was eluted from the column using 7M NH3/MeOH and pure fractions were evaporated to dryness to afford crude product as a orange gum. The sample was given to the purification group to be purified by preparative HPLC. Fractions containing the desired compound were evaporated to dryness to afford 2-(2-(1,3-dimethyl-1H-pyrazol-4-ylamino)-5-(trifluoromethyl)pyridin-4-ylamino)-N-methoxybenzamide (13.60 mg, 11.18 %) as a tan gum. The sample was not pure enough to register so will be re-made.

Sources & evidence

ORD record
ord-f86ba050900b4317a90d58cd76e4f1c2
Source dataset
750 AstraZeneca ELN dataset
Original link
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Reaction notes

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