Hydrochloric Acid → [5-(5-{4-[2-(Trifluoromethyl)phenoxy]piperidin-1-yl}-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl]acetic acid

HRID 561195Notes

Reaction equation

HRID 561195 reaction equation
[F:1][C:2]([F:33])([F:32])[C:3]1[CH:31]=[CH:30][CH:29]=[CH:28][C:4]=1[O:5][CH:6]1[CH2:11][CH2:10][N:9]([C:12]2[S:16][C:15]([C:17]3[N:18]=[N:19][N:20]([CH2:22][C:23]([O:25]CC)=[O:24])[N:21]=3)=[N:14][N:13]=2)[CH2:8][CH2:7]1.[OH-].[Na+].Cl>C1COCC1.CO>[F:33][C:2]([F:1])([F:32])[C:3]1[CH:31]=[CH:30][CH:29]=[CH:28][C:4]=1[O:5][CH:6]1[CH2:11][CH2:10][N:9]([C:12]2[S:16][C:15]([C:17]3[N:18]=[N:19][N:20]([CH2:22][C:23]([OH:25])=[O:24])[N:21]=3)=[N:14][N:13]=2)[CH2:8][CH2:7]1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 14798Sodium HydroxideHCID 86620455ethyl [5-(5-{4-[2-(trifluoromethyl)phenoxy]piperidin-1-yl}-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl]acetate

Product 1

HCID 57518492[5-(5-{4-[2-(Trifluoromethyl)phenoxy]piperidin-1-yl}-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl]acetic acid

Reagents, catalysts & solvents 1

HCID 21899815MeOH tetrahydrofuranSolvent

Procedure

A solution of ethyl [5-(5-{4-[2-(trifluoromethyl)phenoxy]piperidin-1-yl}-1,3,4-thiadiazol-2-yl)-2H-tetrazol-2-yl]acetate (134 mg, 0.28 mmol) in THF/MeOH (2:1) (v/v) (4.6 mL) was treated with aqueous 1 N NaOH (1.5 mL). The reaction mixture was stirred at room temperature until TLC indicated disappearance of the starting material. The reaction mixture was poured into aqueous aqueous 0.5 N HCl, extracted with EtOAc, washed with brine. The organic layer was dried (Na2SO4) and filtered. Evaporation of the solvent was followed by trituration in a mixture of Et2O/heptane with stirring for 1 h at room temperature. After this time, the title compound was collected by filtration as a white solid.

Workup

  1. extractionextracted with EtOAc
  2. washwashed with brine
  3. dry with materialThe organic layer was dried (Na2SO4)
  4. filtrationfiltered
  5. customEvaporation of the solvent
  6. additionwas followed by trituration in a mixture of Et2O/heptane
  7. stirringwith stirring for 1 h at room temperature
  8. filtrationAfter this time, the title compound was collected by filtration as a white solid

Sources & evidence

ORD record
ord-f5830db75438493ea0f01ea103a4ec60
Source dataset
uspto-grants-2011_11
Patent number
US08063224B2

Reaction notes

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