1-Methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazine → {3-[4-(4-Methylpiperazin-1-yl)-phenyl]-9H-dipyrido[2,3-b;4',3'-d]pyrrol-6-yl}-methanol

HRID 1506014Notes

Reaction equation

HRID 1506014 reaction equation
Br[C:2]1[CH:16]=[N:15][C:5]2[NH:6][C:7]3[CH:12]=[N:11][C:10]([CH2:13][OH:14])=[CH:9][C:8]=3[C:4]=2[CH:3]=1.[CH3:17][N:18]1[CH2:23][CH2:22][N:21]([C:24]2[CH:29]=[CH:28][C:27](B3OC(C)(C)C(C)(C)O3)=[CH:26][CH:25]=2)[CH2:20][CH2:19]1>C(#N)C.C(=O)([O-])[O-].[Na+].[Na+].C1COCC1.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:17][N:18]1[CH2:23][CH2:22][N:21]([C:24]2[CH:25]=[CH:26][C:27]([C:2]3[CH:16]=[N:15][C:5]4[NH:6][C:7]5[CH:12]=[N:11][C:10]([CH2:13][OH:14])=[CH:9][C:8]=5[C:4]=4[CH:3]=3)=[CH:28][CH:29]=2)[CH2:20][CH2:19]1

Participants

7

Reactant 2

HCID 179989051-Methyl-4-(4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)piperazineHCID 582664323-Bromo-9H-dipyrido[2,3-b;4',3'-d]pyrrole-6-methanol

Product 1

HCID 58266339{3-[4-(4-Methylpiperazin-1-yl)-phenyl]-9H-dipyrido[2,3-b;4',3'-d]pyrrol-6-yl}-methanol

Reagents, catalysts & solvents 4

HCID 178418476HCID 178418476, compoundCatalystHCID 6342AcetonitrileSolventHCID 8028TetrahydrofuranSolventHCID 10340Sodium CarbonateSolvent

Conditions

Temperature
150 °C

Procedure

A suspension of 3-bromo-9H-dipyrido[2,3-b;4′,3′-d]pyrrole-6-methanol (40.7 mg, 0.146 mmol), 4-(4-methylpiperazin-1-yl)phenylboronic acid pinacol ester (46.4 mg, 0.154 mmol) and bis(triphenylphosphine)palladium(II) dichloride (5.1 mg, 7.3 μmol) in acetonitrile (0.73 mL) and 2N aqueous sodium carbonate solution (0.73 mL) was heated at 150° C. under microwave irradiation for 20 minutes. The cooled reaction mixture was diluted with THF, the solid removed by filtration, and washed with THF and DCM. The combined filtrate was concentrated in vacuo and the resultant residue purified by flash chromatography (silica, 1-15% (2N ammonia methanol) in DCM) to afford the title compound. 1H NMR (DMSO-D6, 400 MHz): 12.46 (s, 1H), 9.76 (s, 1H), 9.07 (d, J=1.8 Hz, 1H), 8.97 (d, J=1.8 Hz, 1H), 8.50 (s, 1H), 7.76 (d, J=8.7 Hz, 2H), 7.17 (d, J=8.7 Hz, 2H), 4.13 (s, 2H), 3.38-3.30 (m, 8H), 2.89 (s, 3H). LCMS (Method D): RT=5.24 min, M+H+=374.

Workup

  1. customThe cooled reaction mixture
  2. customthe solid removed by filtration
  3. washwashed with THF and DCM
  4. concentrationThe combined filtrate was concentrated in vacuo
  5. customthe resultant residue purified by flash chromatography (silica, 1-15% (2N ammonia methanol) in DCM)

Sources & evidence

ORD record
ord-7fa55b444a254803a007869aa4be9b61
Source dataset
uspto-grants-2015_12
Patent number
US09216980B2

Reaction notes

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