Sodium Carbonate → 4-[2-(cyclopropylmethoxy)-5-(pyridin-3-yl)phenyl]-6-methyl-1,6-dihydro-7H-pyrrolo[2,3-c]pyridin-7-one

HRID 930942Notes

Reaction equation

HRID 930942 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.[N:34]1[CH:39]=[CH:38][CH:37]=[C:36](B(O)O)[CH:35]=1.C(=O)([O-])[O-].[Na+].[Na+].[OH-].[Na+]>O1CCOCC1.O.O.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]>[CH:31]1([CH2:30][O:29][C:5]2[CH:4]=[CH:3][C:2]([C:36]3[CH:35]=[N:34][CH:39]=[CH:38][CH:37]=3)=[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

8

Reactant 4

HCID 10340Sodium CarbonateHCID 14798Sodium HydroxideHCID 27343783-Pyridinylboronic acidHCID 896575324-(5-bromo-2-(cyclopropylmethoxy)phenyl)-6-methyl-1-tosyl-1H-pyrrolo[2,3-c]pyridin-7(6H)-one

Product 1

HCID 896562134-[2-(cyclopropylmethoxy)-5-(pyridin-3-yl)phenyl]-6-methyl-1,6-dihydro-7H-pyrrolo[2,3-c]pyridin-7-oneYield 75.1%

Reagents, catalysts & solvents 3

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 962WaterSolventHCID 218864351,4-Dioxane--water (1/1)Solvent

Conditions

Temperature
120 °C

Procedure

A suspension of Example 314b (100 mg, 0.190 mmol), pyridin-3-ylboronic acid (23.31 mg, 0.190 mmol), sodium carbonate (60.3 mg, 0.569 mmol), and tris(dibenzylideneacetone)-dipalladium(0) (15.48 mg, 0.019 mmol) in 4 mL dioxane-water (3:1) was heated under nitrogen under microwave conditions (Biotage Initiator) at 120° C. for 30 minutes. The reaction mixture was the treated with 1 mL aqueous 4 N NaOH and heated at 120° C. under microwave conditions again for 30 minutes. The mixture was diluted with water and extracted with ethyl acetate (2×), washed with 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, 0-10% methanol/dichloromethane gradient) to give the title compound (53 mg, 75% yield). 1H NMR (300 MHz, DMSO-d6) δ ppm 11.95 (s, 1H), 8.90 (dd, J=2.4, 0.7 Hz, 1H), 8.56-8.49 (m, 1H), 8.07 (ddd, J=8.0, 2.4, 1.7 Hz, 1H), 7.71-7.64 (m, 2H), 7.45 (ddd, J=7.9, 4.8, 0.8 Hz, 1H), 7.34 (s, 1H), 7.26 (t, J=2.7 Hz, 1H), 7.21 (d, J=8.5 Hz, 1H), 6.18 (dd, J=2.6, 2.2 Hz, 1H), 3.91 (d, J=6.7 Hz, 2H), 3.58 (s, 3H), 1.15-1.04 (m, 1H), 0.49-0.42 (m, 2H), 0.28-0.21 (m, 2H). MS (ESI+) m/z 372.2 (M+H)+.

Workup

  1. extractionextracted with ethyl acetate (2×)
  2. washwashed with saturated aqueous sodium chloride
  3. dry with materialdried over anhydrous magnesium sulfate
  4. filtrationfiltered
  5. concentrationThe filtrate was concentrated
  6. customthe residue was purified by flash chromatography (silica gel, 0-10% methanol/dichloromethane gradient)

Sources & evidence

ORD record
ord-058d65bfe5d14a689a4412b32b44fff9
Source dataset
uspto-grants-2016_03
Patent number
US09296741B2

Reaction notes

Loading…