4-Aminophenylboronic acid → Tert-butyl 4-(4-(4-aminophenyl)-6-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-1,3,5-triazin-2-yl)piperazine-1-carboxylate

HRID 2037120Notes

Reaction equation

HRID 2037120 reaction equation
[CH:1]12[O:8][CH:5]([CH2:6][CH2:7]1)[CH2:4][N:3]([C:9]1[N:14]=[C:13](Cl)[N:12]=[C:11]([N:16]3[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:28])([CH3:27])[CH3:26])=[O:23])[CH2:18][CH2:17]3)[N:10]=1)[CH2:2]2.[NH2:29][C:30]1[CH:35]=[CH:34][C:33](B(O)O)=[CH:32][CH:31]=1.C(O)C.C1(C)C=CC=CC=1>C(=O)([O-])[O-].[Na+].[Na+].[Pd].C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1>[NH2:29][C:30]1[CH:35]=[CH:34][C:33]([C:13]2[N:14]=[C:9]([N:3]3[CH2:4][CH:5]4[O:8][CH:1]([CH2:7][CH2:6]4)[CH2:2]3)[N:10]=[C:11]([N:16]3[CH2:21][CH2:20][N:19]([C:22]([O:24][C:25]([CH3:26])([CH3:27])[CH3:28])=[O:23])[CH2:18][CH2:17]3)[N:12]=2)=[CH:32][CH:31]=1

Participants

6

Reactant 3

HCID 27346154-Aminophenylboronic acidHCID 21863594Toluene ethanolHCID 86636518Tert-butyl 4-(4-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-6-chloro-1,3,5-triazin-2-yl)piperazine-1-carboxylate

Product 1

HCID 67021837Tert-butyl 4-(4-(4-aminophenyl)-6-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-1,3,5-triazin-2-yl)piperazine-1-carboxylate

Reagents, catalysts & solvents 2

HCID 11979704Tetrakis(triphenylphosphine)palladiumCatalystHCID 10340Sodium CarbonateSolvent

Procedure

A suspension of tert-butyl 4-(4-(8-oxa-3-azabicyclo[3.2.1]octan-3-yl)-6-chloro-1,3,5-triazin-2-yl)piperazine-1-carboxylate (1.0 g, 2.4 mmol), 4-aminophenylboronic acid, pinacol ester (0.69 g, 3.2 mmol), and tetrakis(triphenylphosphine) palladium (0.28 g, 0.24 mmol) in aqueous 2 M sodium carbonate solution (3 mL) and 1:1 ethanol/toluene (12 mL) was irradiated in the microwave at 120° C. for 1 hour. After cooling, the biphasic mixture was extracted thrice with ethyl acetate. The extracts were washed with saturated aqueous sodium chloride solution, dried over anhydrous magnesium sulfate, filtered, and concentrated to dryness under reduced pressure to give the title compound.

Workup

  1. customwas irradiated in the microwave at 120° C. for 1 hour
  2. temperatureAfter cooling
  3. extractionthe biphasic mixture was extracted thrice with ethyl acetate
  4. washThe extracts were washed with saturated aqueous sodium chloride solution
  5. dry with materialdried over anhydrous magnesium sulfate
  6. filtrationfiltered
  7. concentrationconcentrated to dryness under reduced pressure

Sources & evidence

ORD record
ord-6f2698c9e65e427fa6d16db8a5b16432
Source dataset
uspto-grants-2013_11
Patent number
US08575159B2

Reaction notes

Loading…