Trifluoroacetic acid → 2-(4-((S)-3-(Aminomethyl)piperidin-1-yl)-7-methylquinazolin-2-yl)phenol

HRID 2062271Notes

Reaction equation

HRID 2062271 reaction equation
C(OC(=O)[NH:7][CH2:8][C@@H:9]1[CH2:14][CH2:13][CH2:12][N:11]([C:15]2[C:24]3[C:19](=[CH:20][C:21]([CH3:25])=[CH:22][CH:23]=3)[N:18]=[C:17]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=3[OH:32])[N:16]=2)[CH2:10]1)(C)(C)C.C(O)(C(F)(F)F)=O.[OH-].[Na+]>C(Cl)Cl>[NH2:7][CH2:8][C@@H:9]1[CH2:14][CH2:13][CH2:12][N:11]([C:15]2[C:24]3[C:19](=[CH:20][C:21]([CH3:25])=[CH:22][CH:23]=3)[N:18]=[C:17]([C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][C:27]=3[OH:32])[N:16]=2)[CH2:10]1

Participants

5

Reactant 3

HCID 6422Trifluoroacetic acidHCID 14798Sodium HydroxideHCID 136121343tert-Butyl-((S)-1-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperidin-3-yl)methylcarbamate

Product 1

HCID 1361213552-(4-((S)-3-(Aminomethyl)piperidin-1-yl)-7-methylquinazolin-2-yl)phenolYield 74%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To tert-Butyl-((S)-1-(2-(2-hydroxyphenyl)-7-methylquinazolin-4-yl)piperidin-3-yl)methylcarbamate (700 mg, 1.56 mmol) was added 20 mL CH2Cl2 followed by addition of 7 mL of TFA. After the reaction was stirred for 1 hour it was neutralized with a 1.0 M aqueous NaOH solution. The mixture was partitioned between H2O and CH2Cl2, and separated, and the aqueous layer was extracted with CH2Cl2. The combined organic layers were dried over MgSO4, filtered, and concentrated to yield 2-(4-((S)-3-(aminomethyl)piperidin-1-yl)-7-methylquinazolin-2-yl)phenol (400 mg, 74%). LC/MS: m/z 349.3 (M+H)+ at 1.52 min (10%-99% CH3CN (0.035% TFA)/H2O (0.05% TFA)).

Workup

  1. customThe mixture was partitioned between H2O and CH2Cl2
  2. customseparated
  3. extractionthe aqueous layer was extracted with CH2Cl2
  4. dry with materialThe combined organic layers were dried over MgSO4
  5. filtrationfiltered
  6. concentrationconcentrated

Sources & evidence

ORD record
ord-fa657be2932549b6aa00924892c14f14
Source dataset
uspto-grants-2012_10
Patent number
US08283354B2

Reaction notes

Loading…