Cesium carbonate → HCID 59618183, compound

HRID 449889Notes

Reaction equation

HRID 449889 reaction equation
Br[C:2]1[CH:7]=[C:6]([NH:8][C:9](=[O:18])[C:10]2[C:15]([Cl:16])=[CH:14][CH:13]=[CH:12][C:11]=2[Cl:17])[CH:5]=[CH:4][N:3]=1.[CH3:19][N:20]1[CH:24]=[CH:23][C:22]([NH2:25])=[N:21]1.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.C([O-])([O-])=O.[Cs+].[Cs+]>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].O1CCOCC1>[Cl:17][C:11]1[CH:12]=[CH:13][CH:14]=[C:15]([Cl:16])[C:10]=1[C:9]([NH:8][C:6]1[CH:5]=[CH:4][N:3]=[C:2]([NH:25][C:22]2[CH:23]=[CH:24][N:20]([CH3:19])[N:21]=2)[CH:7]=1)=[O:18]

Participants

7

Reactant 4

HCID 10796Cesium carbonateHCID 1372541-Methyl-3-aminopyrazoleHCID 6360441,1'-(9,9-Dimethyl-9H-xanthene-4,5-diyl)bis(1,1-diphenylphosphine)HCID 75464886N-(2-Bromopyridin-4-yl)-2,6-dichlorobenzamide

Product 1

HCID 59618183HCID 59618183, compoundYield 24%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Procedure

To a microwave tube were added N-(2-bromopyridin-4-yl)-2,6-dichlorobenzamide (0.12 g, 0.36 mmol), 1-methyl-1H-pyrazol-3-amine (0.045 g, 0.46 mmol), Pd2(dba)3 (0.031 g, 0.033 mmol), XantPhos (0.031 g, 0.052 mmol), Cs2CO3 (0.31 g, 0.94 mmol) and dioxane (3 mL). The mixture was degassed with N2 for 10 min. The resulting mixture was irradiated in a microwave reactor at 140° C. for 1 hour and then cooled to room temperature. The mixture was filtered through Celite and concentrated under reduced pressure. The residue was in DMF and purified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min) to give the desired product (30 mg, yield: 24%). 1H NMR (500 MHz, DMSO-d6): δ 10.92 (s, 1H). 9.16 (s, 1H), 8.01 (m, 1H), 7.60-7.50 (m, 5H), 7.04 (d, J=4.0 Hz, 1H), 6.27 (d, J=1.5 Hz, 1H), 3.72 (s, 3H). LCMS (ESI) m/z: 362.0 [M+H+].

Workup

  1. customThe mixture was degassed with N2 for 10 min
  2. customThe resulting mixture was irradiated in a microwave reactor at 140° C. for 1 hour
  3. filtrationThe mixture was filtered through Celite
  4. concentrationconcentrated under reduced pressure
  5. custompurified by prep-HPLC (Gilson GX 281, Shim-pack PRC-ODS 250 mm×20 mm×2, gradient: CH3CN/10 mm/L NH4HCO3, 17 min)

Sources & evidence

ORD record
ord-5595a9cc5f6545fbb3fc58af4c77c383
Source dataset
uspto-grants-2013_07
Patent number
US08486950B2

Reaction notes

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