Cesium carbonate → 3-(5-(Azetidin-1-ylmethyl)-1-methyl-1H-pyrazol-3-ylamino)-5-bromo-1-methylpyridin-2(1H)-one

HRID 1918981Notes

Reaction equation

HRID 1918981 reaction equation
[N:1]1([CH2:5][C:6]2[N:10]([CH3:11])[N:9]=[C:8]([NH2:12])[CH:7]=2)[CH2:4][CH2:3][CH2:2]1.Br[C:14]1[C:15](=[O:22])[N:16]([CH3:21])[CH:17]=[C:18]([Br:20])[CH:19]=1.C(=O)([O-])[O-].[Cs+].[Cs+].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>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].C(Cl)Cl.CO.O1CCOCC1>[N:1]1([CH2:5][C:6]2[N:10]([CH3:11])[N:9]=[C:8]([NH:12][C:14]3[C:15](=[O:22])[N:16]([CH3:21])[CH:17]=[C:18]([Br:20])[CH:19]=3)[CH:7]=2)[CH2:4][CH2:3][CH2:2]1

Participants

8

Reactant 4

HCID 10796Cesium carbonateHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 36143503,5-Dibromo-1-methylpyridin-2(1H)-oneHCID 585400285-(Azetidin-1-ylmethyl)-1-methyl-1H-pyrazol-3-amine

Product 1

HCID 670163313-(5-(Azetidin-1-ylmethyl)-1-methyl-1H-pyrazol-3-ylamino)-5-bromo-1-methylpyridin-2(1H)-oneYield 98%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolventHCID 21226129Dichloromethane methanolSolvent

Conditions

Temperature
100 °C

Procedure

Following Example 156g, 200b (350 mg, 2 mmol), 3,5-dibromo-1-methyl-1H-pyridin-2-one (0.54 g, 2 mmol), cesium carbonate (1.3 g, 4 mmol), tris(dibenzylideneacetone)dipalladium(0) (0.18 g, 0.2 mmol), Xantphos (0.23 g, 0.4 mmol) and 1,4-dioxane (20 mL) were heated at 100° C. for 8 hours. Work-up and flash column chromatography (silica, 3:1 methylene chloride/methanol) give a 98% yield (0.69 g) of 3-(5-(azetidin-1-ylmethyl)-1-methyl-1H-pyrazol-3-ylamino)-5-bromo-1-methylpyridin-2(1H)-one 200c as a yellow solid. MS (ESI+) m/z 354.1 (M+H).

Sources & evidence

ORD record
ord-ffe35b56a8064ca292805f93c0e5a0bd
Source dataset
uspto-grants-2013_12
Patent number
US08618107B2

Reaction notes

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