2-Chlorobenzylamine → {4-[3-[3-(2-chloro-benzylamino)-phenyl]-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester

HRID 1809730Notes

Reaction equation

HRID 1809730 reaction equation
[C:1]([O:5][C:6](=[O:39])[NH:7][CH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[N:20]=[C:19]3[N:21]([CH2:31][O:32][CH2:33][CH2:34][Si:35]([CH3:38])([CH3:37])[CH3:36])[N:22]=[C:23]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26](Br)[CH:25]=4)[C:18]3=[CH:17][N:16]=2)[CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2].[Cl:40][C:41]1[CH:48]=[CH:47][CH:46]=[CH:45][C:42]=1[CH2:43][NH2:44].CN(C1C(C2C(P(C3CCCCC3)C3CCCCC3)=CC=CC=2)=CC=CC=1)C.C(O[Na])(C)(C)C>O1CCOCC1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[C:1]([O:5][C:6](=[O:39])[NH:7][CH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[N:20]=[C:19]3[N:21]([CH2:31][O:32][CH2:33][CH2:34][Si:35]([CH3:38])([CH3:37])[CH3:36])[N:22]=[C:23]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26]([NH:44][CH2:43][C:42]5[CH:45]=[CH:46][CH:47]=[CH:48][C:41]=5[Cl:40])[CH:25]=4)[C:18]3=[CH:17][N:16]=2)[CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 4

HCID 666482-ChlorobenzylamineHCID 27342172-(Dicyclohexylphosphino)-2'-(dimethylamino)biphenylHCID 68108922{4-[3-(3-bromo-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl esterHCID 178418730sodium 2-methylpropan-2-olate

Product 1

HCID 68108928{4-[3-[3-(2-chloro-benzylamino)-phenyl]-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 312751,4-DioxaneSolvent

Procedure

To a stirred solution of {4-[3-(3-bromo-phenyl)-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester (from Example 39 supra) (300 mg, 0.486 mmol), 2-chlorobenzylamine (83 mg, 0.583 mmol), DavePhos (38 mg) and t-BuONa (56 mg, 0.58 mmol) in 1,4-dioxane (5 mL), Pd2(dba)3 (28 mg, 0.48 mmol) was added in one portion under N2 atmosphere. The resultant mixture was stirred at 100° C. for 4 hours. The mixture was cooled and filtered; the filtrate was evaporated under reduced pressure to give the crude product. It was purified by chromatography (silica gel, 200-300 mesh, petroleum ether:EtOAc, 3:1, v/v) to give {4-[3-[3-(2-chloro-benzylamino)-phenyl]-1-(2-trimethylsilanyl-ethoxymethyl)-1H-pyrazolo[3,4-d]pyrimidin-6-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester. (Yield 110 mg, 33%).

Workup

  1. temperatureThe mixture was cooled
  2. filtrationfiltered
  3. customthe filtrate was evaporated under reduced pressure
  4. customto give the crude product
  5. customIt was purified by chromatography (silica gel, 200-300 mesh, petroleum ether

Sources & evidence

ORD record
ord-997f7e5c9ed14343b4f06c42ec70bea9
Source dataset
uspto-grants-2013_01
Patent number
US08362023B2

Reaction notes

Loading…