Trifluoroacetic acid → HCID 86679746, compound

HRID 77459Notes

Reaction equation

HRID 77459 reaction equation
[F:1][C:2]([F:38])([F:37])[O:3][C:4]1[CH:9]=[CH:8][C:7]([NH:10][C:11]2[N:16]=[CH:15][C:14]([CH2:17][O:18][C:19]3[CH:36]=[CH:35][C:22]4[N:23]([CH2:27][O:28]CC[Si](C)(C)C)[C:24](=[O:26])[O:25][C:21]=4[CH:20]=3)=[CH:13][N:12]=2)=[CH:6][CH:5]=1.C(O)(C(F)(F)F)=O>C(Cl)Cl>[OH:28][CH2:27][N:23]1[C:22]2[CH:35]=[CH:36][C:19]([O:18][CH2:17][C:14]3[CH:13]=[N:12][C:11]([NH:10][C:7]4[CH:8]=[CH:9][C:4]([O:3][C:2]([F:38])([F:1])[F:37])=[CH:5][CH:6]=4)=[N:16][CH:15]=3)=[CH:20][C:21]=2[O:25][C:24]1=[O:26]

Participants

4

Reactant 2

HCID 6422Trifluoroacetic acidHCID 866797456-((2-((4-(trifluoromethoxy)phenyl)amino)pyrimidin-5-yl)methoxy)-3-((2-(trimethylsilyl)ethoxy)methyl)benzo[d]oxazol-2(3H)-one

Product 1

HCID 86679746HCID 86679746, compoundYield 61.3%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of 6-((2-((4-(trifluoromethoxy)phenyl)amino)pyrimidin-5-yl)methoxy)-3-((2-(trimethylsilyl)ethoxy)methyl)benzo[d]oxazol-2(3H)-one (0.05 g, 0.091 mmol) in DCM (3 mL) at 0° C., TFA (0.035 mL, 0.456 mmol) was added. The reaction mixture was stirred at room temperature for 18 h. Solvent was removed under vacuum and the residue was washed with diethyl ether. The crude product was purified by preparative HPLC on an Inertsil ODS column (19×250 mm, 5μ) using 0 to 65% mobile phase B (ACN) in mobile phase A (0.1% TFA) over 6 min to give 3-(hydroxymethyl)-6-((2-((4-(trifluoromethoxy)phenyl)amino)pyrimidin-5-yl)methoxy)benzo[d]oxazol-2(3H)-one as a white solid (0.025 g, 61%). 1H-NMR: 400 MHz, DMSO-d6 δ ppm 5.03 (s, 2H), 5.19 (s, 2H), 6.92-6.95 (m, 1H), 7.21-7.32 (m, 4H), 7.86-7.88 (m, 1H), 8.62 (s, 2H), 9.96 (s, 1H). LCMS: R.T. 2.303 min; 449 [M+H]+.

Workup

  1. customSolvent was removed under vacuum
  2. washthe residue was washed with diethyl ether
  3. customThe crude product was purified by preparative HPLC on an Inertsil ODS column (19×250 mm, 5μ)
  4. customover 6 min

Sources & evidence

ORD record
ord-69b1659f855f4a008f262ea7106ad62e
Source dataset
uspto-grants-2014_09
Patent number
US08841301B2

Reaction notes

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