Hydrochloric Acid → [4-(2-{(1S,2R)-2-[1-(5-ethylpyrimidin-2-yl)piperidin-4-yl]cyclopropyl}ethoxy)-2-fluorophenyl]acetic acid

HRID 1474711Notes

Reaction equation

HRID 1474711 reaction equation
[CH2:1]([C:3]1[CH:4]=[N:5][C:6]([N:9]2[CH2:14][CH2:13][CH:12]([C@H:15]3[CH2:17][C@H:16]3[CH2:18][CH2:19][O:20][C:21]3[CH:26]=[CH:25][C:24]([CH2:27][C:28]([O:30]C)=[O:29])=[C:23]([F:32])[CH:22]=3)[CH2:11][CH2:10]2)=[N:7][CH:8]=1)[CH3:2].CO.[OH-].[Li+].Cl>O1CCCC1.O>[CH2:1]([C:3]1[CH:4]=[N:5][C:6]([N:9]2[CH2:14][CH2:13][CH:12]([C@H:15]3[CH2:17][C@H:16]3[CH2:18][CH2:19][O:20][C:21]3[CH:26]=[CH:25][C:24]([CH2:27][C:28]([OH:30])=[O:29])=[C:23]([F:32])[CH:22]=3)[CH2:11][CH2:10]2)=[N:7][CH:8]=1)[CH3:2]

Participants

7

Reactant 4

HCID 313Hydrochloric AcidHCID 887MethanolHCID 3939Lithium HydroxideHCID 117684491Methyl [4-(2-{(1S,2R)-2-[1-(5-ethylpyrimidin-2-yl)piperidin-4-yl]cyclopropyl}ethoxy)-2-fluorophenyl]acetate

Product 1

HCID 89584013[4-(2-{(1S,2R)-2-[1-(5-ethylpyrimidin-2-yl)piperidin-4-yl]cyclopropyl}ethoxy)-2-fluorophenyl]acetic acid

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 8028TetrahydrofuranSolvent

Procedure

To a solution of methyl [4-(2-{(1S,2R)-2-[1-(5-ethylpyrimidin-2-yl)piperidin-4-yl]cyclopropyl}ethoxy)-2-fluorophenyl]acetate (0.300 g, 0,679 mmol) in 6 ml anhydrous tetrahydrofuran was added by 2 ml methanol and 2 ml water. Lithium hydroxide (81.0 mg, 3.40 mmol) was added, and the mixture stirred at RT overnight. 1 M hydrochloric acid was added and the pH adjusted to 4. The volatiles were removed under reduced pressure, and the aqueous phase 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 by column chromatography on silica gel (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) 428.2 (M+H)+.

Workup

  1. customThe volatiles were removed under reduced pressure
  2. extractionthe aqueous phase 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 by column chromatography on silica gel (50 g silica gel)

Sources & evidence

ORD record
ord-79b5c876499447f1ba7b89ab5e74baa5
Source dataset
uspto-grants-2015_04
Patent number
US09018224B2

Reaction notes

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