Cesium carbonate → HCID 66850976, compound

HRID 1466582Notes

Reaction equation

HRID 1466582 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:25][CH3:26])=[C:6]([C:8]2[NH:12][N:11]=[CH:10][C:9]=2[NH:13][C:14]([C:16]2[CH:17]=[N:18][N:19]3[CH:24]=[CH:23][CH:22]=[N:21][C:20]=23)=[O:15])[CH:7]=1.C(=O)([O-])[O-].[Cs+].[Cs+].Cl.Cl[CH2:35][CH2:36][N:37]1[CH2:42][CH2:41][O:40][CH2:39][CH2:38]1>CN(C=O)C>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:25][CH3:26])=[C:6]([C:8]2[C:9]([NH:13][C:14]([C:16]3[CH:17]=[N:18][N:19]4[CH:24]=[CH:23][CH:22]=[N:21][C:20]=34)=[O:15])=[CH:10][N:11]([CH2:35][CH2:36][N:37]3[CH2:42][CH2:41][O:40][CH2:39][CH2:38]3)[N:12]=2)[CH:7]=1

Participants

5

Reactant 3

HCID 10796Cesium carbonateHCID 77210Morpholine, 4-(2-chloroethyl)-, hydrochloride (1:1)HCID 66850618HCID 66850618, compound

Product 1

HCID 66850976HCID 66850976, compoundYield 38%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
50 °C

Procedure

To a solution of N-(5-(5-chloro-2-methoxyphenyl)-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide (39.1 mg, 0.106 mmol) in 3 mL DMF was added cesium carbonate (109.7 mg, 0.3367 mmol) and 4-(2-chloroethyl)morpholine HCl. The reaction mixture was stirred at 50° C. for 5 hours. The reaction mixture was partitioned between ethyl acetate and water, and the organic portion washed with brine, dried over magnesium sulfate, and concentrated. The mixture of regioisomer products was separated and purified by reverse phase HPLC and lyophilized to give 19.4 mg (38%) N-(3-(5-chloro-2-methoxyphenyl)-1-(2-morpholinoethyl)-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide; LCMS (ESI) m+H=482.1; 1H NMR (400 MHz, DMSO-d6) δ: 9.50 (s, 1H), 9.31 (dd, 1H), 8.66 (d, 1H), 8.63 (s, 1H), 8.03 (s, 1H), 7.58 (dd, 1H), 7.54 (d, 1H), 7.32 (d, 1H), 7.27 (dd, 1H), 4.05 (m, 2H), 3.85 (s, 3H), 3.44 (m, 2H), 2.71 (m, 2H), 2.60 (m, 2H), 2.23 (m, 4H); and 9.3 mg (18%) of N-(5-(5-chloro-2-methoxyphenyl)-1-(2-morpholinoethyl)-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide; LCMS (ESI) m+H=482.1; 1H NMR (400 MHz, DMSO-d6) δ: 9.67 (s, 1H), 9.31 (dd, 1H), 8.76 (d, 1H), 8.65 (s, 1H), 8.34 (s, 1H), 7.48 (dd, 1H), 7.39 (d, 1H), 7.30 (d, 1H), 7.38 (t, 1H), 4.29 (t, 2H), 3.84 (s, 3H), 3.58 (t, 2H), 2.77 (t, 2H), 2.46 (m, 4H).

Workup

  1. customThe reaction mixture was partitioned between ethyl acetate and water
  2. washthe organic portion washed with brine
  3. dry with materialdried over magnesium sulfate
  4. concentrationconcentrated
  5. additionThe mixture of regioisomer products
  6. customwas separated
  7. custompurified by reverse phase HPLC

Sources & evidence

ORD record
ord-9162697ca2c44e3a9fd1224226916ee3
Source dataset
uspto-grants-2015_04
Patent number
US08999998B2

Reaction notes

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