1-Hydroxybenzotriazole → tert-Butyl 4-(4-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperazine-1-carboxylate

HRID 1485137Notes

Reaction equation

HRID 1485137 reaction equation
[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[CH:19]=[CH:18][C:17]([NH:20][C:21]3[N:26]=[C:25]([CH2:27][CH2:28][C:29]4[CH:34]=[CH:33][CH:32]=[CH:31][C:30]=4[CH2:35][C:36]([O-])=[O:37])[C:24]([C:39]([F:42])([F:41])[F:40])=[CH:23][N:22]=3)=[CH:16][CH:15]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Li+].O[N:45]1C2C=CC=CC=2N=N1.CCN=C=NCCCN(C)C.Cl.C(N(CC)C(C)C)(C)C.C(=O)([O-])[O-].[NH4+].[NH4+]>C1COCC1.CN(C=O)C>[NH2:45][C:36](=[O:37])[CH2:35][C:30]1[CH:31]=[CH:32][CH:33]=[CH:34][C:29]=1[CH2:28][CH2:27][C:25]1[C:24]([C:39]([F:40])([F:42])[F:41])=[CH:23][N:22]=[C:21]([NH:20][C:17]2[CH:16]=[CH:15][C:14]([N:11]3[CH2:10][CH2:9][N:8]([C:6]([O:5][C:1]([CH3:3])([CH3:2])[CH3:4])=[O:7])[CH2:13][CH2:12]3)=[CH:19][CH:18]=2)[N:26]=1

Participants

8

Reactant 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 517111Ammonium CarbonateHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 68282842Lithium 2-(2-(2-(2-((4-(4-(tert-butoxycarbonyl)piperazin-1-yl)phenyl)amino)-5-(trifluoromethyl)pyrimidin-4-yl)ethyl)phenyl)acetate

Product 1

HCID 71229345tert-Butyl 4-(4-((4-(2-(2-amino-2-oxoethyl)phenethyl)-5-(trifluoromethyl)pyrimidin-2-yl)amino)phenyl)piperazine-1-carboxylateYield 68%

Reagents, catalysts & solvents 2

HCID 6228DimethylformamideSolventHCID 8028TetrahydrofuranSolvent

Procedure

Lithium 2-(2-(2-(2-((4-(4-(tert-butoxycarbonyl)piperazin-1-yl)phenyl)amino)-5-(trifluoromethyl)pyrimidin-4-yl)ethyl)phenyl)acetate (I7) (0.195 g, 0.333 mmol) was dissolved in dry THF (10 mL) and dry DMF (2 mL) under an atmosphere of nitrogen. To the solution were added 1-hydroxybenzotriazole (0.049 g, 0.37 mmol) and EDCl (0.070 g, 0.37 mmol) and N,N-diisopropylethylamine (0.232 mL, 1.33 mmol) and the reaction mixture was stirred at room temperature for 10 minutes. Ammonium carbonate (0.128 g, 1.332 mmol) was added in one portion, and the reaction was stirred room temperature for 20 hours. The volatiles were removed in vacuo and the residual solution was diluted with EtOAc (70 mL) and sat. aq. NaHCO3 (70 mL). The layers were separated and the organic layer was washed with water (70 mL), brine (70 mL), dried (MgSO4), filtered and concentrated in vacuo to give the crude product which was purified by silica gel chromatography (Biotage Isolera, 12 g Si Cartridge, 0-100% EtOAc in petroleum benzine 40-60° C., then 0-10% methanol in EtOAc) to give the title compound (I8) (0.133 g, 68% yield) as a pale yellow solid; 1H NMR (400 MHz, d6-DMSO) δ 10.01 (s, 1H), 8.61 (s, 1H), 7.65-7.56 (m, 2H), 7.44 (s, 1H), 7.26-7.13 (m, 4H), 6.98-6.89 (m, 3H), 3.52-3.41 (m, 6H), 3.13-2.95 (m, 8H), 1.42 (s, 9H). LCMS Method C: rt 6.18 min; m/z 585.3 [M+H]+.

Workup

  1. stirringthe reaction was stirred room temperature for 20 hours
  2. customThe volatiles were removed in vacuo
  3. additionthe residual solution was diluted with EtOAc (70 mL) and sat. aq. NaHCO3 (70 mL)
  4. customThe layers were separated
  5. washthe organic layer was washed with water (70 mL), brine (70 mL)
  6. dry with materialdried (MgSO4)
  7. filtrationfiltered
  8. concentrationconcentrated in vacuo
  9. customto give the crude product which
  10. customwas purified by silica gel chromatography (Biotage Isolera, 12 g Si Cartridge, 0-100% EtOAc in petroleum benzine 40-60° C.

Sources & evidence

ORD record
ord-467e520fb1cd43dbab0e439c2c03b707
Source dataset
uspto-grants-2016_08
Patent number
US09421205B2

Reaction notes

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