Hydrochloric Acid → alpha-Phenyl-1-[4-[[[4'-(trifluoromethyl)[1,1'-biphenyl]-2-yl]carbonyl]amino]phenyl]-4-piperidineacetic acid monohydrochloride

HRID 1989867Notes

Reaction equation

HRID 1989867 reaction equation
[C:1]1([CH:7]([CH:12]2[CH2:17][CH2:16][N:15]([C:18]3[CH:23]=[CH:22][C:21]([NH:24][C:25]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=4[C:33]4[CH:38]=[CH:37][C:36]([C:39]([F:42])([F:41])[F:40])=[CH:35][CH:34]=4)=[O:26])=[CH:20][CH:19]=3)[CH2:14][CH2:13]2)[C:8]([O:10]C)=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.O.[ClH:44]>O1CCOCC1>[ClH:44].[C:1]1([CH:7]([CH:12]2[CH2:13][CH2:14][N:15]([C:18]3[CH:23]=[CH:22][C:21]([NH:24][C:25]([C:27]4[CH:32]=[CH:31][CH:30]=[CH:29][C:28]=4[C:33]4[CH:38]=[CH:37][C:36]([C:39]([F:42])([F:40])[F:41])=[CH:35][CH:34]=4)=[O:26])=[CH:20][CH:19]=3)[CH2:16][CH2:17]2)[C:8]([OH:10])=[O:9])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 962WaterHCID 22499403Methyl alpha-phenyl-1-[4-[[[4'-(trifluoromethyl)-[1,1'-biphenyl]-2-yl]carbonyl]amino]phenyl]-4-piperidineacetate

Product 1

HCID 68521936alpha-Phenyl-1-[4-[[[4'-(trifluoromethyl)[1,1'-biphenyl]-2-yl]carbonyl]amino]phenyl]-4-piperidineacetic acid monohydrochloride

Reagents, catalysts & solvents 1

HCID 312751,4-DioxaneSolvent

Procedure

A mixture of intermediate (23) (0.0014 mol) in concentrated HCl (25 ml) and dioxane (20 ml) was stirred and refluxed for 4 hours, cooled and poured out into water. The mixture was extracted with DCM. The organic layer was separated, dried, filtered and the solvent was evaporated. The residue was triturated in DIPE. The precipitate was filtered off and dried, yielding 0.48 g of α-phenyl-1-[4-[[[4′-(trifluoromethyl)[1,1′-biphenyl]-2-yl]carbonyl]amino]phenyl]-4-piperidineacetic acid monohydrochloride (intermediate 24, mp. 196° C.).

Workup

  1. temperaturerefluxed for 4 hours
  2. temperaturecooled
  3. extractionThe mixture was extracted with DCM
  4. customThe organic layer was separated
  5. customdried
  6. filtrationfiltered
  7. customthe solvent was evaporated
  8. customThe residue was triturated in DIPE
  9. filtrationThe precipitate was filtered off
  10. customdried

Sources & evidence

ORD record
ord-c125aa466ef14ef88ea4d13d20f8f737
Source dataset
uspto-grants-2010_01
Patent number
US07642378B2

Reaction notes

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