Dichloromethane → [4-(cyclopropylmethoxy)-3-(6-methyl-7-oxo-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-4-yl)phenyl]acetonitrile

HRID 930952Notes

Reaction equation

HRID 930952 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]([O:29][CH2:30][CH:31]2[CH2:33][CH2:32]2)=[C:6]([C:8]2[C:9]3[CH:18]=[CH:17][N:16](S(C4C=CC(C)=CC=4)(=O)=O)[C:10]=3[C:11](=[O:15])[N:12]([CH3:14])[CH:13]=2)[CH:7]=1.CC1(C)C(C)(C)OB([C:42]2[CH:43]=[N:44]OC=2)O1.ClCCl.[F-].[K+].[OH-].[Na+]>CS(C)=O.O.Cl[Pd]Cl.C1(P(C2C=CC=CC=2)[C-]2C=CC=C2)C=CC=CC=1.[C-]1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=C1.[Fe+2]>[CH:31]1([CH2:30][O:29][C:5]2[CH:4]=[CH:3][C:2]([CH2:42][C:43]#[N:44])=[CH:7][C:6]=2[C:8]2[C:9]3[CH:18]=[CH:17][NH:16][C:10]=3[C:11](=[O:15])[N:12]([CH3:14])[CH:13]=2)[CH2:33][CH2:32]1

Participants

9

Reactant 5

HCID 6344DichloromethaneHCID 14798Sodium HydroxideHCID 522689Potassium FluorideHCID 164141804-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2-oxazoleHCID 896575324-(5-bromo-2-(cyclopropylmethoxy)phenyl)-6-methyl-1-tosyl-1H-pyrrolo[2,3-c]pyridin-7(6H)-one

Product 1

HCID 90200600[4-(cyclopropylmethoxy)-3-(6-methyl-7-oxo-6,7-dihydro-1H-pyrrolo[2,3-c]pyridin-4-yl)phenyl]acetonitrileYield 48%

Reagents, catalysts & solvents 3

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 679Dimethyl SulfoxideSolventHCID 962WaterSolvent

Conditions

Temperature
130 °C

Procedure

A mixture of Example 314b (100 mg, 0.190 mmol), 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)isoxazole (44.4 mg, 0.228 mmol), [1,1′-bis(diphenylphosphino)ferrocene]-dichloropalladium (II), complex with dichloromethane (1:1) (15.5 mg, 0.019 mmol), and potassium fluoride (44.1 mg, 0.758 mmol) in dimethylsulfoxide (1.9 mL) and water (0.75 mL) was purged with nitrogen gas and heated under microwave conditions at 130° C. at for 1.5 hours. The mixture was then treated with 1 mL 4N NaOH and stirred at ambient temperature for 2 hours. The reaction mixture was partitioned between water and ethyl acetate, and the aqueous layers was extracted with ethyl acetate. The combined organic phases were washed with water (2×), saturated aqueous sodium chloride, dried over anhydrous magnesium sulfate, and filtered. The filtrate was concentrated and the residue was purified by flash chromatography (silica gel, 0-8% methanol/dichloromethane gradient) to give the title compound (30 mg, 48% yield). 1H NMR (300 MHz, DMSO-d6) δ ppm 12.00 (s, 1H), 12.00 (s, 1H), 7.32 (d, J=2.4 Hz, 1H), 7.34-7.25 (m, 4H), 7.30-7.25 (m, 3H), 7.10 (d, J=8.4 Hz, 1H), 7.10 (d, J=8.4 Hz, 1H), 6.14 (dd, J=2.6, 2.2 Hz, 1H), 6.14 (dd, J=2.6, 2.2 Hz, 1H), 3.99 (s, 2H), 3.99 (s, 2H), 3.84 (d, J=6.7 Hz, 2H), 3.84 (d, J=6.7 Hz, 2H), 3.56 (s, 3H), 3.56 (s, 3H), 1.11-1.02 (m, 1H), 1.12-1.02 (m, 1H), 0.48-0.39 (m, 2H), 0.49-0.35 (m, 2H), 0.31-0.18 (m, 2H), 0.26-0.19 (m, 2H). MS (ESI+) m/z 334.1 (M+H)+.

Workup

  1. customThe reaction mixture was partitioned between water and ethyl acetate
  2. extractionthe aqueous layers was extracted with ethyl acetate
  3. washThe combined organic phases were washed with water (2×), saturated aqueous sodium chloride
  4. dry with materialdried over anhydrous magnesium sulfate
  5. filtrationfiltered
  6. concentrationThe filtrate was concentrated
  7. customthe residue was purified by flash chromatography (silica gel, 0-8% methanol/dichloromethane gradient)

Sources & evidence

ORD record
ord-0197634d65ae4034ae1c61c785f5bdb1
Source dataset
uspto-grants-2016_03
Patent number
US09296741B2

Reaction notes

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