Trifluoroacetic acid → HCID 136121356, compound

HRID 2079411Notes

Reaction equation

HRID 2079411 reaction equation
[F:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[N:8]=[C:7]([C:12]1[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=1[OH:18])[N:6]=[C:5]2[N:19]1[CH2:23][CH2:22][C@@H:21]([NH:24]C(=O)OC(C)(C)C)[CH2:20]1.C(O)(C(F)(F)F)=O.C([O-])(O)=O.[Na+]>C(Cl)Cl>[NH2:24][C@@H:21]1[CH2:22][CH2:23][N:19]([C:5]2[C:4]3[C:9](=[CH:10][CH:11]=[C:2]([F:1])[CH:3]=3)[N:8]=[C:7]([C:12]3[CH:17]=[CH:16][CH:15]=[CH:14][C:13]=3[OH:18])[N:6]=2)[CH2:20]1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 516892Sodium BicarbonateHCID 136199089HCID 136199089, compound

Product 1

HCID 136121356HCID 136121356, compound

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Procedure

To a solution of tert-butyl (R)-1-(6-fluoro-2-(2-hydroxyphenyl)quinazolin-4-yl)pyrrolidin-3-ylcarbamate (480 mg, 1.11 mmol) in CH2Cl2 (10 mL) was added TFA (4 mL). The reaction was stirred for an hour, diluted with 10 mL CH2Cl2, and neutralized with a saturated aqueous NaHCO3 solution. The aqueous layer was extracted twice with CH2Cl2. The combined organic layers were dried over MgSO4, filtered, and concentrated. Purification via silica gel chromatography using 3-20% EtOAc/CH2Cl2 gave 2-(4-((R)-3-aminopyrrolidin-1-yl)-6-fluoroquinazolin-2-yl)phenol. LC/MS: m/z 325.5 (M+H)+ at 1.26 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. extractionThe aqueous layer was extracted twice with CH2Cl2
  2. dry with materialThe combined organic layers were dried over MgSO4
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customPurification via silica gel chromatography

Sources & evidence

ORD record
ord-266681b223514c1686af6852418f68f0
Source dataset
uspto-grants-2011_04
Patent number
US07928107B2

Reaction notes

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