Trifluoroacetic acid → 2-{6-[1-Ethyl-3-(4-trifluoromethoxyphenyl)ureido]-5,6,7,8-tetrahydronaphthalen-2-ylsulfanyl}-2-methylpropionic acid

HRID 898870Notes

Reaction equation

HRID 898870 reaction equation
C([O:5][C:6](=[O:38])[C:7]([S:10][C:11]1[CH:20]=[CH:19][C:18]2[CH2:17][CH:16]([N:21]([CH2:36][CH3:37])[C:22]([NH:24][C:25]3[CH:30]=[CH:29][C:28]([O:31][C:32]([F:35])([F:34])[F:33])=[CH:27][CH:26]=3)=[O:23])[CH2:15][CH2:14][C:13]=2[CH:12]=1)([CH3:9])[CH3:8])(C)(C)C.C(O)(C(F)(F)F)=O>C(Cl)Cl>[CH2:36]([N:21]([CH:16]1[CH2:15][CH2:14][C:13]2[CH:12]=[C:11]([S:10][C:7]([CH3:8])([CH3:9])[C:6]([OH:38])=[O:5])[CH:20]=[CH:19][C:18]=2[CH2:17]1)[C:22]([NH:24][C:25]1[CH:26]=[CH:27][C:28]([O:31][C:32]([F:35])([F:33])[F:34])=[CH:29][CH:30]=1)=[O:23])[CH3:37]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 86594050HCID 86594050, compound

Product 1

HCID 102552732-{6-[1-Ethyl-3-(4-trifluoromethoxyphenyl)ureido]-5,6,7,8-tetrahydronaphthalen-2-ylsulfanyl}-2-methylpropionic acidYield 43.2%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To 2-{6-[1-ethyl-3-(4-trifluoromethoxyphenyl)ureido]-5,6,7,8-tetrahydronaphthalen-2-ylsulfanyl}-2-methylpropionic acid tert butyl ester (1.66 g; 3.0 mmol) dissolved in CH2Cl2 (15 mL) is added TFA (15 mL) and the reaction was stirred at RT for 1.5 h. The solvent was removed under reduced pressure and the residue was purified by flash chromatography (SiO2) eluting with a hexanes-EtOAc gradient to afford 0.643 g (43%) of 2-{6-[1-ethyl-3-(4-trifluoromethoxyphenyl)ureido]-5,6,7,8-tetrahydronaphthalen-2-ylsulfanyl}-2-methylpropionic acid as a white solid.

Workup

  1. customThe solvent was removed under reduced pressure
  2. customthe residue was purified by flash chromatography (SiO2)
  3. washeluting with a hexanes-EtOAc gradient

Sources & evidence

ORD record
ord-e456e71ddb364ee8b5b1728892904a45
Source dataset
uspto-grants-2008_04
Patent number
US07351857B2

Reaction notes

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