Lithium Hydroxide → HCID 67148187, compound

HRID 910310Notes

Reaction equation

HRID 910310 reaction equation
[CH2:1]([O:3][C@@H:4]([CH2:9][C:10]1[CH:15]=[CH:14][C:13]([C:16]2[N:17]([CH3:33])[N:18]=[C:19]([N:21]([CH3:32])[C:22]([NH:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])=[O:23])[N:20]=2)=[CH:12][CH:11]=1)[C:5]([O:7]C)=[O:6])[CH3:2].[OH-].[Li+]>O1CCCC1>[CH2:1]([O:3][C@@H:4]([CH2:9][C:10]1[CH:15]=[CH:14][C:13]([C:16]2[N:17]([CH3:33])[N:18]=[C:19]([N:21]([CH3:32])[C:22]([NH:24][CH2:25][CH2:26][CH2:27][CH2:28][CH2:29][CH2:30][CH3:31])=[O:23])[N:20]=2)=[CH:12][CH:11]=1)[C:5]([OH:7])=[O:6])[CH3:2]

Participants

4

Reactant 2

HCID 3939Lithium HydroxideHCID 67148575HCID 67148575, compound

Product 1

HCID 67148187HCID 67148187, compoundYield 84.2%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

37 mg (80 μmol) of methyl 2(S)-ethoxy-3-{4-[5-(3-heptyl-1-methylureido)-2-methyl-2H-[1,2,4]triazol-3-yl]phenyl}propanoate placed in 2 ml of tetrahydrofuran and 0.1 ml (0.1 mmol) of aqueous 1M lithium hydroxide solution are stirred at room temperature overnight. The reaction medium is acidified to pH 4 and extracted with ethyl acetate. The organic phase is washed with water, with saturated sodium chloride solution, dried over magnesium sulfate, filtered and evaporated. 30 mg (83%) of 2(S)-ethoxy-3-{4-[5-(3-heptyl-1-methylureido)-2-methyl-2H-[1,2,4]-triazol-3-yl]phenyl}propanoic acid are obtained in the form of a white solid.

Workup

  1. extractionextracted with ethyl acetate
  2. washThe organic phase is washed with water, with saturated sodium chloride solution
  3. dry with materialdried over magnesium sulfate
  4. filtrationfiltered
  5. customevaporated

Sources & evidence

ORD record
ord-5501331eeba34d5487f6f8f0fbc0ab19
Source dataset
uspto-grants-2011_09
Patent number
US08022079B2

Reaction notes

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