Water → tert-Butyl [3-(2-{2-[(tert-butoxycarbonyl)amino]-5-[(2,5-dichloropyrimidin-4-yl)amino]phenyl}ethyl)phenyl]carbamate

HRID 541749Notes

Reaction equation

HRID 541749 reaction equation
[NH2:1][C:2]1[CH:3]=[CH:4][C:5]([NH:24][C:25]([O:27][C:28]([CH3:31])([CH3:30])[CH3:29])=[O:26])=[C:6]([CH2:8][CH2:9][C:10]2[CH:11]=[C:12]([NH:16][C:17](=[O:23])[O:18][C:19]([CH3:22])([CH3:21])[CH3:20])[CH:13]=[CH:14][CH:15]=2)[CH:7]=1.C(=O)([O-])[O-].[K+].[K+].[Cl:38][C:39]1[N:44]=[C:43](Cl)[C:42]([Cl:46])=[CH:41][N:40]=1.O>CN(C=O)C>[C:28]([O:27][C:25]([NH:24][C:5]1[CH:4]=[CH:3][C:2]([NH:1][C:41]2[C:42]([Cl:46])=[CH:43][N:44]=[C:39]([Cl:38])[N:40]=2)=[CH:7][C:6]=1[CH2:8][CH2:9][C:10]1[CH:11]=[C:12]([NH:16][C:17](=[O:23])[O:18][C:19]([CH3:22])([CH3:21])[CH3:20])[CH:13]=[CH:14][CH:15]=1)=[O:26])([CH3:31])([CH3:30])[CH3:29]

Participants

6

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 2372592,4,5-TrichloropyrimidineHCID 57962696Carbamic acid,n-[3-[2-[5-amino-2-[[(1,1-dimethylethoxy)carbonyl]amino]phenyl]ethyl]phenyl]-,1,1-dimethylethyl ester

Product 1

HCID 57962263tert-Butyl [3-(2-{2-[(tert-butoxycarbonyl)amino]-5-[(2,5-dichloropyrimidin-4-yl)amino]phenyl}ethyl)phenyl]carbamateYield 99.5%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
25 °C

Procedure

A solution of tert-butyl [3-(2-{5-amino-2-[(tert-butoxycarbonyl)amino]phenyl}ethyl)phenyl]carbamate (8.15 g, 19.1 mmol) in DMF (19 mL) was treated with potassium carbonate (3.42 g, 24.8 mol) and stirred at 25° C. for 5 minutes. The reaction mixture was treated with 2,4,5-trichloropyrimidine (2.40 mL, 21.0 mmol) dropwise and stirred at 20° C. overnight. The reaction mixture was poured into water (200 mL) and extracted with ethyl acetate (300 mL). The organic layer was separated and washed with brine (50 mL), dried with sodium sulfate, filtered, and concentrated to give a crude orange oil. The residue was purified with silica gel chromatography to give the desired product (10.9 g, 99.5%). LCMS calculated for C28H33Cl2N5O4Na (M+Na)+: m/z=596.0, 598.0.

Workup

  1. stirringstirred at 20° C. overnight
  2. extractionextracted with ethyl acetate (300 mL)
  3. customThe organic layer was separated
  4. washwashed with brine (50 mL)
  5. dry with materialdried with sodium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated
  8. customto give a crude orange oil
  9. customThe residue was purified with silica gel chromatography

Sources & evidence

ORD record
ord-68c75382906a48cb8a16abc85921d31d
Source dataset
uspto-grants-2014_10
Patent number
US08871753B2

Reaction notes

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