1,2-Dimethoxyethane → HCID 89979944, compound

HRID 926302Notes

Reaction equation

HRID 926302 reaction equation
Br[C:2]1[CH:11]=[CH:10][CH:9]=[C:8]2[C:3]=1[CH2:4][CH2:5][N:6]1[C:16](=[O:17])[CH2:15][N:14]=[C:13]([N:18]3[CH:22]=[C:21]([CH:23]4[CH2:25][CH2:24]4)[N:20]=[CH:19]3)[CH:12]=[C:7]12.[F:26][C:27]1[N:32]=[CH:31][C:30](B(O)O)=[CH:29][CH:28]=1.C([O-])([O-])=O.[Na+].[Na+].COCCOC>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>[CH:23]1([C:21]2[N:20]=[CH:19][N:18]([C:13]3[CH:12]=[C:7]4[C:8]5[C:3]([CH2:4][CH2:5][N:6]4[C:16](=[O:17])[CH2:15][N:14]=3)=[C:2]([C:30]3[CH:31]=[N:32][C:27]([F:26])=[CH:28][CH:29]=3)[CH:11]=[CH:10][CH:9]=5)[CH:22]=2)[CH2:24][CH2:25]1

Participants

7

Reactant 4

HCID 80711,2-DimethoxyethaneHCID 10340Sodium CarbonateHCID 2783397(6-Fluoropyridin-3-yl)boronic acidHCID 89980432HCID 89980432, compound

Product 1

HCID 89979944HCID 89979944, compoundYield 67.4%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolvent

Conditions

Temperature
85 °C

Procedure

Example 95-1. 9-bromo-2-(4-cyclopropyl-1H-imidazol-1-yl)-7,8-dihydro-[1,4]diazepino[7,1-a]isoquinolin-5(4H)-one (1.48 g, 3.73 mmol), (6-fluoropyridin-3-yl)boronic acid (1.05 g, 7.45 mmol) and a solution of Na2CO3 (1.97 g, 18.63 mmol) in water (14.5 mL) was treated with DME (58 mL). The suspension was degassed, Pd(PPh3)4 (646 mg, 0.56 mmol) was added and the mixture was heated at 85° C. for 2 h. The mixture was allowed to warm to RT and the solvent was removed under reduced pressure. The residue was dissolved in DCM and extracted with water, saturated aqueous NaHCO3 solution and brine. The combined organic layers were dried with sodium sulfate, filtered and the solvent was removed under reduced pressure. The crude product was purified by flash-column chromatography over silicagel (Biotage Isolera Four, eluent: 1% MeOH in DCM for 3 min, then from 1% MeOH in DCM to 4% MeOH in DCM in 25 min, 4% MeOH in DCM for 5 min) to yield a beige foam (1.04 g). The residue was crystallized from AcOEt to afford the title compound as white crystals (720 mg). UPLC-MS: MS 414.2 (M+H+); UPLC rt 0.95 min. 1H NMR (600 MHz, DMSO-d6) δ ppm 0.66 (d, J=3.4 Hz, 2 H), 0.72-0.84 (m, 2 H), 1.70-1.88 (m, 1 H), 2.84 (br. s., 2 H), 3.72 (br. s., 2 H), 4.24 (br. s., 2 H), 7.18 (s, 1 H), 7.31 (d, J=8.5 Hz, 1 H), 7.43 (s, 1 H), 7.47-7.57 (m, 2 H), 7.97-8.14 (m, 3 H), 8.27 (s, 1 H).

Workup

  1. customThe suspension was degassed
  2. temperatureto warm to RT
  3. customthe solvent was removed under reduced pressure
  4. dissolutionThe residue was dissolved in DCM
  5. extractionextracted with water, saturated aqueous NaHCO3 solution and brine
  6. dry with materialThe combined organic layers were dried with sodium sulfate
  7. filtrationfiltered
  8. customthe solvent was removed under reduced pressure
  9. customThe crude product was purified by flash-column chromatography over silicagel (Biotage Isolera Four, eluent
  10. waitfrom 1% MeOH in DCM to 4% MeOH in DCM in 25 min

Sources & evidence

ORD record
ord-bf0a60f0e5fe443899f41fe2d50648c9
Source dataset
uspto-grants-2016_03
Patent number
US09284331B2

Reaction notes

Loading…