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Cesium carbonate → HCID 178496645, compound

HRID 1486928
Notes
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Reaction equation

HRID 1486928 reaction equation
Br[C:2]1[CH:11]=[CH:10][C:9]2[N:8]=[CH:7][C:6]3[N:12]([CH3:22])[C:13](=[O:21])[N:14]([C@H:15]4[CH2:18][C@@H:17]([O:19][CH3:20])[CH2:16]4)[C:5]=3[C:4]=2[CH:3]=1.[CH3:23][N:24]([CH3:44])[CH2:25][CH2:26][CH2:27][O:28][C:29]1[CH:34]=[CH:33][C:32](B2OC(C)(C)C(C)(C)O2)=[CH:31][N:30]=1.C(=O)([O-])[O-].[Cs+].[Cs+]>O1CCOCC1.O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH3:44][N:24]([CH3:23])[CH2:25][CH2:26][CH2:27][O:28][C:29]1[N:30]=[CH:31][C:32]([C:2]2[CH:11]=[CH:10][C:9]3[N:8]=[CH:7][C:6]4[N:12]([CH3:22])[C:13](=[O:21])[N:14]([C@H:15]5[CH2:18][C@@H:17]([O:19][CH3:20])[CH2:16]5)[C:5]=4[C:4]=3[CH:3]=2)=[CH:33][CH:34]=1
ParticipantsConditionsProcedureWorkupSources & evidenceReaction notes

Participants

7

Reactant 3

HCID 10796Cesium carbonateHCID 17998906N,N-Dimethyl-3-((5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)oxy)propan-1-amineHCID 178496644HCID 178496644, compound

Product 1

HCID 178496645HCID 178496645, compoundYield 75.5%

Reagents, catalysts & solvents 3

HCID 178418397
HCID 178418397, compound
Catalyst
HCID 962WaterSolvent
HCID 312751,4-DioxaneSolvent

Conditions

Temperature
90 °C

Procedure

Pd(Ph3P)4 (2.074 g, 1.79 mmol) was added to a mixture of 8-bromo-1-(cis-3-methoxycyclobutyl)-3-methylimidazo[4,5-c]quinolin-2-one (13 g, 35.89 mmol), N,N-dimethyl-3-[5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl]oxypropan-1-amine (13.15 g, 43.07 mmol) and cesium carbonate (23.39 g, 71.78 mmol) in 1,4-dioxane (200 mL) and water (40 mL) under nitrogen. The resulting mixture was stirred at 90° C. for 3 h before being allowed to cool. The reaction mixture was concentrated and diluted with EtOAc (750 mL), and washed sequentially with water (2×150 mL), and sat. brine (150 mL). The organic layer was dried over Na2SO4, filtered and evaporated to afford crude product. The crude product was purified by FCC, elation gradient 0 to 10% MeOH in DCM, to afford the desired material (12.50 g, 75%) as a white solid. NMR Spectrum: 1H NMR (400 MHz, DMSO-d6) δ 1.90 (2H, q), 2.16 (6H, s), 2.37 (2H, t), 2.72-2.92 (2H, m), 3.01 (2H, d), 3.21 (3H, s), 3.50 (3H, s), 3.79-3.95 (1H, m), 4.37 (2H, t), 5.12 (1H, t), 6.97 (1H, d), 7.82-7.98 (1H, m), 8.11 (1H, d), 8.19 (2H, dd), 8.42 (1H, s), 8.67 (1H, d), 8.87 (1H, s). Mass Spectrum: m/z (ES+)[M+H]+=462.

Workup

  1. temperatureto cool
  2. concentrationThe reaction mixture was concentrated
  3. additiondiluted with EtOAc (750 mL)
  4. washwashed sequentially with water (2×150 mL), and sat. brine (150 mL)
  5. dry with materialThe organic layer was dried over Na2SO4
  6. filtrationfiltered
  7. customevaporated
  8. customto afford crude product
  9. customThe crude product was purified by FCC, elation gradient 0 to 10% MeOH in DCM

Sources & evidence

ORD record
ord-f0e00bda24f04554b2e4c7bd01e660d0
Source dataset
uspto-grants-2016_08
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US09428503B2

Reaction notes

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On this pageParticipantsConditionsProcedureWorkupSources & evidenceReaction notes