Acetic Acid → 4-(2-Fluoro-5-methoxycarbonyloxy-4-methylanilino)-7-(2-(imidazol-1-yl)ethoxy)-6-methoxyquinazoline

HRID 279556

Reaction equation

HRID 279556 reaction equation
N(C(OCC)=O)=NC(OCC)=O.Cl.[F:14][C:15]1[CH:34]=[C:33]([CH3:35])[C:32]([O:36][C:37]([O:39][CH3:40])=[O:38])=[CH:31][C:16]=1[NH:17][C:18]1[C:27]2[C:22](=[CH:23][C:24]([OH:30])=[C:25]([O:28][CH3:29])[CH:26]=2)[N:21]=[CH:20][N:19]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[N:60]1([CH2:65][CH2:66]O)[CH:64]=[CH:63][N:62]=[CH:61]1.C(O)(=O)C>C(Cl)Cl>[F:14][C:15]1[CH:34]=[C:33]([CH3:35])[C:32]([O:36][C:37]([O:39][CH3:40])=[O:38])=[CH:31][C:16]=1[NH:17][C:18]1[C:27]2[C:22](=[CH:23][C:24]([O:30][CH2:66][CH2:65][N:60]3[CH:64]=[CH:63][N:62]=[CH:61]3)=[C:25]([O:28][CH3:29])[CH:26]=2)[N:21]=[CH:20][N:19]=1

Participants

7

Reactant 5

HCID 176Acetic AcidHCID 11776TriphenylphosphineHCID 74168N-(2-Hydroxyethyl)imidazoleHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 1356711794-(2-Fluoro-5-methoxycarbonyloxy-4-methylanilino)-7-hydroxy-6-methoxyquinazoline hydrochloride

Product 1

HCID 226250254-(2-Fluoro-5-methoxycarbonyloxy-4-methylanilino)-7-(2-(imidazol-1-yl)ethoxy)-6-methoxyquinazolineYield 76.4%

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent

Procedure

Diethyl azodicarboxylate (160 mg, 1.4 mmol) was added to a solution of 4-(2-fluoro-5-methoxycarbonyloxy-4-methylanilino)-7-hydroxy-6-methoxyquinazoline hydrochloride (261 mg, 0.7 mmol), (prepared as described for the starting material in Example 22), triphenylphosphine (367 mg, 1.4 mmol) and 2-(imidazol-1-yl)ethanol (94 mg, 0.84 mmol), (J. Med. Chem. 1993, 25, 4052-4060), in methylene chloride (5 ml) and the mixture stirred for 1 hour at ambient temperature. Acetic acid (42 mg, 0.7 mmol) was added and the solvent was removed by evaporation. The residue was triturated with ether, the solid collected by filtration, dried under vacuum and purified by chromatography eluting with methylene chloride/methanol (9/1 followed by 8/2) to give 4-(2-fluoro-5-methoxycarbonyloxy-4-methylanilino)-7-(2-(imidazol-1-yl)ethoxy)-6-methoxyquinazoline (250 mg, 76%).

Workup

  1. custom(prepared
  2. customthe solvent was removed by evaporation
  3. customThe residue was triturated with ether
  4. filtrationthe solid collected by filtration
  5. customdried under vacuum
  6. custompurified by chromatography
  7. washeluting with methylene chloride/methanol (9/1 followed by 8/2)

Sources & evidence

ORD record
ord-b09be4b4f04f4c91b265718ae24c509e
Source dataset
uspto-grants-2002_03
Patent number
US06362336B1

Linked notes

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