Trifluoroacetic acid → 5-Chloro-4-[(2-cyclopentyl-6-methyl-5-oxo-2,6,9,11-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-10-yl)amino]-2-fluoro-benzoic acid

HRID 2234486Notes

Reaction equation

HRID 2234486 reaction equation
[Cl:1][C:2]1[C:3]([NH:16][C:17]2[N:27]=[C:26]3[C:20]([N:21]([CH3:34])[C:22](=[O:33])[CH2:23][CH2:24][N:25]3[CH:28]3[CH2:32][CH2:31][CH2:30][CH2:29]3)=[CH:19][N:18]=2)=[CH:4][C:5]([F:15])=[C:6]([CH:14]=1)[C:7]([O:9]C(C)(C)C)=[O:8].FC(F)(F)C(O)=O>C(Cl)Cl>[Cl:1][C:2]1[C:3]([NH:16][C:17]2[N:27]=[C:26]3[C:20]([N:21]([CH3:34])[C:22](=[O:33])[CH2:23][CH2:24][N:25]3[CH:28]3[CH2:32][CH2:31][CH2:30][CH2:29]3)=[CH:19][N:18]=2)=[CH:4][C:5]([F:15])=[C:6]([CH:14]=1)[C:7]([OH:9])=[O:8]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 68684234Tert-butyl 5-chloro-4-[(2-cyclopentyl-6-methyl-5-oxo-2,6,9,11-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-10-yl)amino]-2-fluoro-benzoate2×

Product 1

HCID 686827155-Chloro-4-[(2-cyclopentyl-6-methyl-5-oxo-2,6,9,11-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-10-yl)amino]-2-fluoro-benzoic acidYield 100%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

tert-butyl 5-chloro-4-[(2-cyclopentyl-6-methyl-5-oxo-2,6,9,11-tetrazabicyclo[5.4.0]undeca-7,9,11-trien-10-yl)amino]-2-fluoro-benzoate (Intermediate 220; 220 mg, 0.45 mmol) was dissolved in DCM (7.5 mL) and trifluoroacetic acid (2.5 mL) added. The mixture was stirred at room temperature for 2 hours. The refraction mixture was evaporated, the residue dissolved in methanol/DCM and absorbed on to an SCX column, which was subsequently washed with methanol and eluted with ammonia in methanol. Product containing fractions were combined and evaporated to yield the title compound as a white solid (195 mg, 100%).

Workup

  1. customThe refraction mixture was evaporated
  2. dissolutionthe residue dissolved in methanol/DCM
  3. customabsorbed on to an SCX column, which
  4. washwas subsequently washed with methanol
  5. washeluted with ammonia in methanol
  6. additionProduct containing fractions
  7. customevaporated

Sources & evidence

ORD record
ord-6a92fda7e2b648d39e3137b3823f45fb
Source dataset
uspto-grants-2010_05
Patent number
US07709471B2

Reaction notes

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