Hydrochloric Acid → HCID 71667659, compound

HRID 928954Notes

Reaction equation

HRID 928954 reaction equation
[F:1][C:2]1[C:7]2[N:8]=[CH:9][O:10][C:6]=2[CH:5]=[C:4]([C:11]([NH:13][O:14][CH2:15][CH2:16][O:17]C=C)=[O:12])[C:3]=1[NH:20][C:21]1[CH:26]=[CH:25][C:24]([I:27])=[CH:23][C:22]=1[F:28].Cl>C(Cl)Cl>[F:1][C:2]1[C:7]2[N:8]=[CH:9][O:10][C:6]=2[CH:5]=[C:4]([C:11]([NH:13][O:14][CH2:15][CH2:16][OH:17])=[O:12])[C:3]=1[NH:20][C:21]1[CH:26]=[CH:25][C:24]([I:27])=[CH:23][C:22]=1[F:28]

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 89704805HCID 89704805, compound

Product 1

HCID 71667659HCID 71667659, compoundYield 88.9%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

To a solution of compound 4-fluoro-5-((2-fluoro-4-iodophenyl)amino)-N-(2-(vinyloxy)ethoxy)benzo[d]oxazole-6-carboxamide (450 mg, 0.9 mmol) in CH2Cl2 (10 mL) was added 1.0 N HCl (aq., 6.7 mL, 6.72 mmol). After stirring for 1 h, the reaction mixture was washed with saturated NaHCO3 (aq.). The aqueous layer was washed with CH2Cl2 (10 mL×2). The combined organic layer was washed with water (10 mL) and brine (10 mL), dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by column chromatography on silica gel (CH2Cl2/MeOH, 50:1, v/v) and gave the desired product (white solid, 380 mg, 88.9% yield). 1H NMR (400 MHz, DMSO-d6): δ 11.75 (s, 1H), 8.96 (s, 1H), 8.01 (s, 1H), 7.88 (s, 1H), 7.53 (d, J=9.4 Hz, 1H), 7.28 (d, J=8.7 Hz, 1H), 6.39 (m, 1H), 4.70 (s, 1H), 3.83 (s, 2H), 3.56 (s, 2H). MS APCI (+) m/z: 476.1, [M+H].

Workup

  1. washthe reaction mixture was washed with saturated NaHCO3 (aq.)
  2. washThe aqueous layer was washed with CH2Cl2 (10 mL×2)
  3. washThe combined organic layer was washed with water (10 mL) and brine (10 mL)
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated in vacuo
  7. customThe crude product was purified by column chromatography on silica gel (CH2Cl2/MeOH, 50:1

Sources & evidence

ORD record
ord-3885d88c95304059891122c18a805ec5
Source dataset
uspto-grants-2016_03
Patent number
US09290468B2

Reaction notes

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