Diisopropylethylamine → HCID 67099924, compound

HRID 1868876Notes

Reaction equation

HRID 1868876 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[F:12])[C:8]([CH3:14])([CH3:13])[C:7](=[O:15])[C:6]([C:16](OCC)=[O:17])=[C:5]2[OH:21].Cl.[C:23]([O:27][C:28](=[O:31])[CH2:29][NH2:30])([CH3:26])([CH3:25])[CH3:24].CCN(C(C)C)C(C)C>O1CCOCC1.O>[Cl:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][C:11]=1[F:12])[C:8]([CH3:13])([CH3:14])[C:7](=[O:15])[C:6]([C:16]([NH:30][CH2:29][C:28]([O:27][C:23]([CH3:26])([CH3:25])[CH3:24])=[O:31])=[O:17])=[C:5]2[OH:21]

Participants

6

Reactant 3

HCID 81531DiisopropylethylamineHCID 2725036Glycine tert-butyl ester hydrochlorideHCID 67099888HCID 67099888, compound

Product 1

HCID 67099924HCID 67099924, compoundYield 68.5%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 312751,4-DioxaneSolvent

Procedure

A solution of ethyl 6-chloro-7-fluoro-4-hydroxy-1,1-dimethyl-2-oxo-naphthalene-3-carboxylate (0.350 g, 1.12 mmol), glycine tert-butyl ester hydrochloride (0.244 g, 1.45 mmol), and Hunig's base (0.390 mL, 2.24 mmol) in 1,4-dioxane (15 mL) was heated at 120° C. for 2 hours in a sealed vessel. The solution was diluted with water (50 mL), extracted with EtOAc (2×50 mL), washed with water (50 mL), and then washed with brine (50 mL). The organic layer was dried over MgSO4 and concentrated in vacuo. The residue was purified by flash column chromatography (silica, 0-75% DCM in hexane) to give the title compound (0.305 g). MS m/e=396.5 (M−H)−.

Workup

  1. extractionextracted with EtOAc (2×50 mL)
  2. washwashed with water (50 mL)
  3. washwashed with brine (50 mL)
  4. dry with materialThe organic layer was dried over MgSO4
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by flash column chromatography (silica, 0-75% DCM in hexane)

Sources & evidence

ORD record
ord-0c0072c69b044f75a2bbf08bc096672c
Source dataset
uspto-grants-2009_12
Patent number
US07635715B2

Reaction notes

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