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Lithium hydroxide, monohydrate → 3-{[5-(azetidin-1-ylcarbonyl)-3-chloropyridin-2-yl]oxy}-5-{[(1S)-2-hydroxy-1-methylethyl]oxy}benzoic acid

HRID 1011814
Notes
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Reaction equation

HRID 1011814 reaction equation
O.[OH-].[Li+].[N:4]1([C:8]([C:10]2[CH:11]=[C:12]([Cl:32])[C:13]([O:16][C:17]3[CH:18]=[C:19]([CH:24]=[C:25]([O:27][C@@H:28]([CH3:31])[CH2:29][OH:30])[CH:26]=3)[C:20]([O:22]C)=[O:21])=[N:14][CH:15]=2)=[O:9])[CH2:7][CH2:6][CH2:5]1>O.C1COCC1>[N:4]1([C:8]([C:10]2[CH:11]=[C:12]([Cl:32])[C:13]([O:16][C:17]3[CH:18]=[C:19]([CH:24]=[C:25]([O:27][C@@H:28]([CH3:31])[CH2:29][OH:30])[CH:26]=3)[C:20]([OH:22])=[O:21])=[N:14][CH:15]=2)=[O:9])[CH2:7][CH2:6][CH2:5]1
ParticipantsProcedureWorkupSources & evidenceReaction notes

Participants

5

Reactant 2

HCID 168937Lithium hydroxide, monohydrateHCID 53629688methyl 3-{[5-(azetidin-1-ylcarbonyl)-3-chloropyridin-2-yl]oxy}-5-{[(1S)-2-hydroxy-1-methylethyl]oxy}benzoate

Product 1

HCID 591271743-{[5-(azetidin-1-ylcarbonyl)-3-chloropyridin-2-yl]oxy}-5-{[(1S)-2-hydroxy-1-methylethyl]oxy}benzoic acidYield 73%

Reagents, catalysts & solvents 2

HCID 962WaterSolvent
HCID 8028
Tetrahydrofuran
Solvent

Procedure

Lithium hydroxide monohydrate (529 mg, 12.59 mmol) in water (25 mL) was added to a solution of methyl 3-{[5-(azetidin-1-ylcarbonyl)-3-chloropyridin-2-yl]oxy}-5-{[(1S)-2-hydroxy-1-methylethyl]oxy}benzoate (5.3 g, 12.6 mmol) in THF (50 mL) and stirred at RT for 3 hours. The THF was removed in vacuo and the aqueous layer was washed with ethyl acetate (50 mL) to remove any impurities. The aqueous layer was acidified and extracted into ethyl acetate (2×50 mL), and the organics washed with brine, dried (MgSO4), and concentrated in vacuo to give the desired compound as a white foam (3.74 g).

Workup

  1. customThe THF was removed in vacuo
  2. washthe aqueous layer was washed with ethyl acetate (50 mL)
  3. customto remove any impurities
  4. extractionextracted into ethyl acetate (2×50 mL)
  5. washthe organics washed with brine
  6. dry with materialdried (MgSO4)
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-dc7c81ec0bb54d4b8a12fb8541de3ea3
Source dataset
uspto-grants-2011_07
DOI
10.6084/m9.figshare.5104873.v1
Patent number
US07977328B2

Reaction notes

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On this pageParticipantsProcedureWorkupSources & evidenceReaction notes