Trifluoroacetic acid → (3R)-6-cyclohexyl-3-{3-[(ethylamino)methyl]-1,2,4-oxadiazol-5-yl}hexanoic acid

HRID 1350226Notes

Reaction equation

HRID 1350226 reaction equation
[CH:1]1([CH2:7][CH2:8][CH2:9][C@@H:10]([C:19]2[O:23][N:22]=[C:21]([CH2:24][NH:25][CH2:26][CH3:27])[N:20]=2)[CH2:11][C:12]([O:14]C(C)(C)C)=[O:13])[CH2:6][CH2:5][CH2:4][CH2:3][CH2:2]1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH:1]1([CH2:7][CH2:8][CH2:9][C@@H:10]([C:19]2[O:23][N:22]=[C:21]([CH2:24][NH:25][CH2:26][CH3:27])[N:20]=2)[CH2:11][C:12]([OH:14])=[O:13])[CH2:2][CH2:3][CH2:4][CH2:5][CH2:6]1

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 16748069tert-butyl (3R)-6-cyclohexyl-3-{3-[(ethylamino)methyl]-1,2,4-oxadiazol-5-yl}hexanoate

Product 1

HCID 16749010(3R)-6-cyclohexyl-3-{3-[(ethylamino)methyl]-1,2,4-oxadiazol-5-yl}hexanoic acidYield 151.7%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-butyl(3R)-6-cyclohexyl-3-{3-[(ethylamino)methyl]-1,2,4-oxadiazol-5-yl}hexanoate (preparation 74) (288 mg, 0.76 mmol) was treated with TFA (5 ml) and stirred at room temperature for 1 hour. The reaction mixture was diluted with DCM and the solvents removed under reduced pressure. The residue was azeotroped from toluene (×3) and DCM (×3) to afford the title compound (373 mg).

Workup

  1. customthe solvents removed under reduced pressure
  2. customThe residue was azeotroped from toluene (×3) and DCM (×3)

Sources & evidence

ORD record
ord-8cb3675511b540959ff7c8c7a6a73289
Source dataset
uspto-grants-2007_05
Patent number
US07214694B2

Reaction notes

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