Hydrochloric Acid → HCID 86711203, compound

HRID 1850784Notes

Reaction equation

HRID 1850784 reaction equation
[F:1][C:2]1[CH:7]=[C:6]([O:8][CH2:9][CH2:10][C@@H:11]2[CH2:13][C@@H:12]2[CH:14]2[CH2:19][CH2:18][N:17]([C:20]3[O:24][N:23]=[C:22]([CH2:25][O:26][CH3:27])[N:21]=3)[CH2:16][CH2:15]2)[CH:5]=[C:4]([F:28])[C:3]=1[CH2:29][C:30]([O:32]C)=[O:31].CO.[OH-].[Li+].Cl>O1CCCC1.O>[F:1][C:2]1[CH:7]=[C:6]([O:8][CH2:9][CH2:10][C@@H:11]2[CH2:13][C@@H:12]2[CH:14]2[CH2:19][CH2:18][N:17]([C:20]3[O:24][N:23]=[C:22]([CH2:25][O:26][CH3:27])[N:21]=3)[CH2:16][CH2:15]2)[CH:5]=[C:4]([F:28])[C:3]=1[CH2:29][C:30]([OH:32])=[O:31]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 3939Lithium HydroxideHCID 70856293HCID 70856293, compound

Product 1

HCID 86711203HCID 86711203, compound

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl (2,6-difluoro-4-{2-[(1S,2R)-2-{1-[3-(methoxymethyl)-1,2,4-oxadiazol-5-yl]piperidin-4-yl}cyclopropyl]ethoxy}phenyl)acetate (0.500 g, 10.7 mmol) in 14 ml anhydrous tetrahydrofuran was added by 7 ml methanol and 7 ml water. Lithium hydroxide (0.3129 g, 5.37 mmol) was added into the reaction mixture, and the reaction was stirred at RT overnight. 1 M hydrochloric acid was added to adjust the pH to 4. The volatiles were removed under vacuum, and the remaining aqueous layer was extracted with dichloromethane (3×20 ml). The organics were combined, dried over magnesium sulphate, filtered, and the filtrate concentrated under reduced pressure. The residue was purified on Biotage column (50 g silica gel) using a gradient eluent of 0-70% ethyl acetate in hexanes (700 ml) to afford the title compound. LC/MS (m/z) 432.3 (M+H)+.

Workup

  1. customThe volatiles were removed under vacuum
  2. extractionthe remaining aqueous layer was extracted with dichloromethane (3×20 ml)
  3. dry with materialdried over magnesium sulphate
  4. filtrationfiltered
  5. concentrationthe filtrate concentrated under reduced pressure
  6. customThe residue was purified on Biotage column (50 g silica gel)

Sources & evidence

ORD record
ord-2b7fca3bd5c74a0991bf2c0eca143685
Source dataset
uspto-grants-2015_02
Patent number
US08957062B2

Reaction notes

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