HomeMCPWorkbenchSkills
HomeWorkbenchNotificationsMe
llms.txt · MCP GuidePrivacy Policy · Terms of Service · Supportv1.8.0
  1. Home
  2. /Reaction

1-Isopropyl-3-methyl-1H-pyrazol-5-amine → Gsk-2256098

HRID 174
Notes
Print preview

Reaction equation

HRID 174 reaction equation
CONC(=O)c1ccccc1Nc1cc(Cl)ncc1Cl.Cc1cc(N)n(C(C)C)n1>C1COCCO1.CC(=O)O.CC(=O)O.O=C([O-])[O-].[Cs+].[Cs+].[Pd].c1ccc(P(c2ccccc2)c2ccc3ccccc3c2-c2c(P(c3ccccc3)c3ccccc3)ccc3ccccc23)cc1>CONC(=O)c1ccccc1Nc1cc(Nc2cc(C)nn2C(C)C)ncc1Cl
ParticipantsConditionsProcedureSources & evidenceReaction notes

Participants

7

Reactant 2

HCID 1210181-Isopropyl-3-methyl-1H-pyrazol-5-amineHCID 575168962-[(2,5-dichloro-4-pyridinyl)amino]-N-(methyloxy)benzamide

Product 1

HCID 46214930Gsk-2256098Yield 36.87%

Reagents, catalysts & solvents 4

HCID 10796Cesium carbonateReagentHCID 634876Binap, (A+-)-Catalyst
HCID 4144353Palladium (II) acetateCatalyst
HCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

2-(2,5-dichloropyridin-4-ylamino)-N-methoxybenzamide (200 mg, 0.64 mmol), 1-isopropyl-3-methyl-1H-pyrazol-5-amine (178 mg, 1.28 mmol) and cesium carbonate (626 mg, 1.92 mmol) were suspended in 1,4-dioxane (3 mL). Nitrogen was bubbled through mixture for 10 minutes. 2,2'-bis(diphenylphosphino)-1,1'-binaphthyl (120 mg, 0.19 mmol) and diacetoxypalladium (21.58 mg, 0.10 mmol) were added and tube was sealed. Mixture was stirred at reflux overnight. Reaction was allowed to cool to room temperature, filtered, washed with CH2Cl2/MeOH (9/1, 10 mL) and concentrated to dryness. The crude product was purified by flash chromatography (dry loading) on silica gel eluting with 1 to 5% methanol in dichloromethane. The solvent was evaporated to dryness to afford 2-(5-chloro-2-(1-isopropyl-3-methyl-1H-pyrazol-5-ylamino)pyridin-4-ylamino)-N-methoxybenzamide (98 mg, 36.9 %) as a pink foam => _impure, contains BINAP or BINAP by- products_

Sources & evidence

ORD record
ord-41cdb2f97f5445aca97a2a002d0ddd58
Source dataset
750 AstraZeneca ELN dataset
Original link
View source

Reaction notes

Loading…

On this pageParticipantsConditionsProcedureSources & evidenceReaction notes