Diisopropylethylamine → HCID 49856847, compound

HRID 1466557Notes

Reaction equation

HRID 1466557 reaction equation
[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:15][CH3:16])=[C:6]([C:8]2[N:12]([CH3:13])[N:11]=[CH:10][C:9]=2[NH2:14])[CH:7]=1.[N:17]1[N:21]2[CH:22]=[CH:23][CH:24]=[N:25][C:20]2=[C:19]([C:26](O)=[O:27])[CH:18]=1.F[P-](F)(F)(F)(F)F.N1(O[P+](N2CCCC2)(N2CCCC2)N2CCCC2)C2N=CC=CC=2N=N1.C(N(CC)C(C)C)(C)C>CN(C)C1C=CN=CC=1.CN(C)C=O>[Cl:1][C:2]1[CH:3]=[CH:4][C:5]([O:15][CH3:16])=[C:6]([C:8]2[N:12]([CH3:13])[N:11]=[CH:10][C:9]=2[NH:14][C:26]([C:19]2[CH:18]=[N:17][N:21]3[CH:22]=[CH:23][CH:24]=[N:25][C:20]=23)=[O:27])[CH:7]=1

Participants

7

Reactant 4

HCID 81531DiisopropylethylamineHCID 1910189Pyrazolo[1,5-a]pyrimidine-3-carboxylic acidHCID 11038641((7-Azabenzotriazol-1-YL)oxy)tris(pyrrolidino)phosphonium hexafluorophosphateHCID 66851217HCID 66851217, compound

Product 1

HCID 49856847HCID 49856847, compoundYield 51%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
50 °C

Procedure

A mixture of 5-(5-chloro-2-methoxyphenyl)-1-methyl-1H-pyrazol-4-amine (0.100 g, 0.421 mmol, 1 eq), pyrazolo[1,5-a]pyrimidine-3-carboxylic acid (77.2 mg, 0.473 mmol, 1.12 eq), 7-azabenzotriazol-1-yloxy-tris-(pyrrolidino)phosphonium hexafluorophosphate (269 mg, 0.519 mmol, 1.23 eq), N,N-diisopropylethylamine (0.15 mL, 0.86 mmol, 2.0 eq), and 4-dimethylaminopyridine (20.1 mg, 0.164 mmol, 0.39 eq) in 5.0 mL N,N-dimethylformamide was stirred at 50° C. for 2 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 crude product was purified by reverse phase HPLC and lyophilized to give 82.2 mg (51%) of N-(5-(5-chloro-2-methoxyphenyl)-1-methyl-1H-pyrazol-4-yl)pyrazolo[1,5-a]pyrimidine-3-carboxamide. LCMS (ESI) m+H=383.0; 1H NMR (400 MHz, DMSO-d6) δ: 9.51 (s, 1H), 9.31 (d, 1H), 8.67 (d, 1H), 8.63 (s, 1H), 7.98 (s, 1H), 7.58 (d, 1H), 7.54 (s, 1H), 7.31 (d, 1H), 7.28 (d of d, 1H), 3.85 (s, 3H), 3.70 (s, 3H).

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. customThe crude product was purified by reverse phase HPLC

Sources & evidence

ORD record
ord-583e6dcd70724c9292352e307fb2bc9f
Source dataset
uspto-grants-2015_04
Patent number
US08999998B2

Reaction notes

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