Benzylamine → HCID 68226949, compound

HRID 1186533Notes

Reaction equation

HRID 1186533 reaction equation
[C:1]([O:5][C:6](=[O:31])[NH:7][CH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[C:16]3[N:17]([C:21]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26](Br)[N:25]=4)=[CH:22][N:23]=3)[CH:18]=[CH:19][N:20]=2)[CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2].[CH2:32]([NH2:39])[C:33]1[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=1.CN(C1C(C2C(P(C3CCCCC3)C3CCCCC3)=CC=CC=2)=CC=CC=1)C.CC([O-])(C)C.[Na+]>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:31])[NH:7][CH:8]1[CH2:13][CH2:12][CH:11]([NH:14][C:15]2[C:16]3[N:17]([C:21]([C:24]4[CH:29]=[CH:28][CH:27]=[C:26]([NH:39][CH2:32][C:33]5[CH:38]=[CH:37][CH:36]=[CH:35][CH:34]=5)[N:25]=4)=[CH:22][N:23]=3)[CH:18]=[CH:19][N:20]=2)[CH2:10][CH2:9]1)([CH3:4])([CH3:3])[CH3:2]

Participants

7

Reactant 4

HCID 7504BenzylamineHCID 27342172-(Dicyclohexylphosphino)-2'-(dimethylamino)biphenylHCID 23676156Sodium t-butoxideHCID 86670921{4-[3-(6-Bromo-pyridin-2-yl)-imidazo[1,2-a]pyrazin-8-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester

Product 1

HCID 68226949HCID 68226949, compound

Reagents, catalysts & solvents 2

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

Conditions

Temperature
110 °C

Procedure

A mixture of {4-[3-(6-bromo-pyridin-2-yl)-imidazo[1,2-a]pyrazin-8-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester (from Example 40 supra) (0.487 g, 1.0 mmol), benzylamine (0.214 g, 2.0 mmol), Pd2(dba)3 (60 mg), Davephos (80 mg), NaOtBu (140 mg, 1.46 mmol) in dioxane (25 mL) in a sealed tube was bubbled with N2 for several minutes and then heated under N2 at 110° C. for 15 hours. The solution was then cooled to room temperature and filtered. The filtrate was concentrated under reduced pressure. The obtained crude product was purified by preparative-HPLC to give {4-[3-(6-benzylamino-pyridin-2-yl)-imidazo[1,2-a]pyrazin-8-ylamino]-cyclohexyl}-carbamic acid tert-butyl ester. (Yield 80 mg). LC-MS: [M+H]+ 514.

Workup

  1. customwas bubbled with N2 for several minutes
  2. temperatureThe solution was then cooled to room temperature
  3. filtrationfiltered
  4. concentrationThe filtrate was concentrated under reduced pressure
  5. customThe obtained crude product
  6. customwas purified by preparative-HPLC

Sources & evidence

ORD record
ord-e006ea4381464259b1f94820b41f8009
Source dataset
uspto-grants-2014_03
Patent number
US08673905B2

Reaction notes

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