Triethylamine → HCID 20786182, compound

HRID 252776Notes

Reaction equation

HRID 252776 reaction equation
[C:1]([O:5][C:6](=[O:27])[NH:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[NH:14][C:15](=[O:26])[C:16]1[CH:21]=[CH:20][C:19]([CH:22]([NH2:25])[CH2:23][OH:24])=[CH:18][CH:17]=1)([CH3:4])([CH3:3])[CH3:2].[CH3:28][O:29][C:30]1[CH:31]=[C:32]([CH:36]=[CH:37][C:38]=1[O:39][CH3:40])[C:33](Cl)=[O:34].CCN(CC)CC.[NH4+].[Cl-]>C(Cl)Cl>[C:1]([O:5][C:6](=[O:27])[NH:7][C:8]1[CH:13]=[CH:12][CH:11]=[CH:10][C:9]=1[NH:14][C:15](=[O:26])[C:16]1[CH:17]=[CH:18][C:19]([CH:22]([NH:25][C:33](=[O:34])[C:32]2[CH:36]=[CH:37][C:38]([O:39][CH3:40])=[C:30]([O:29][CH3:28])[CH:31]=2)[CH2:23][OH:24])=[CH:20][CH:21]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

6

Reactant 4

HCID 8471TriethylamineHCID 25517Ammonium ChlorideHCID 77070Veratroyl chlorideHCID 66893730HCID 66893730, compound

Product 1

HCID 20786182HCID 20786182, compoundYield 71%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a stirred solution of 299 (88 mg, 0.24 mmol) in dry DCM (2 mL) at −20° C. was added 3,4-dimethoxybenzoyl chloride (50 mg, 0.25 mmol) followed by Et3N (37 μL, 126 mmol). The reaction mixture was allowed to warm up to room temperature then was stirred for 48 h. A solution of sat. NH4Cl was added, followed by DCM and the phases were separated. The organic layer was washed with brine, dried over anhydrous Na2SO4, filtered and concentrated. The crude residue was purified by flash chromatography on silica gel (MeOH/DCM: 4/96) to afford title compound 300 (91 mg, 0.17 mmol, 71% yield). 1H NMR (300 MHz, CDCl3) δ (ppm): 9.29 (s, 1H), 7.81 (d, J=8.1 Hz, 2H), 7.65-7.58 (m, 1H), 7.46 (m, 7H), 6.80 (d, J=8.1 Hz, 1H), 5.20-5.10 (m, 1H), 3.95-3.78 (m, 2H), 3.88 (s, 3H) 3.84 (s, 3H), 1.47 (s, 9H).

Workup

  1. customthe phases were separated
  2. washThe organic layer was washed with brine
  3. dry with materialdried over anhydrous Na2SO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customThe crude residue was purified by flash chromatography on silica gel (MeOH/DCM: 4/96)

Sources & evidence

ORD record
ord-e5612cb3e9ee4bf08706e26c04d69775
Source dataset
uspto-grants-2011_01
Patent number
US07868204B2

Reaction notes

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