Hydrochloric Acid → 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-(N-methyl-N-(pyridazin-4-yl)amino)ethoxy)quinazoline hydrochloride

HRID 1737608Notes

Reaction equation

HRID 1737608 reaction equation
N(C(OCC)=O)=NC(OCC)=O.[Cl:13][C:14]1[CH:33]=[CH:32][C:17]([NH:18][C:19]2[C:28]3[C:23](=[CH:24][C:25]([OH:31])=[C:26]([O:29][CH3:30])[CH:27]=3)[N:22]=[CH:21][N:20]=2)=[C:16]([F:34])[CH:15]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[CH3:54][N:55]([CH2:62][CH2:63]O)[C:56]1[CH:61]=[CH:60][N:59]=[N:58][CH:57]=1.Cl>C(Cl)Cl.C(Cl)Cl.CO>[ClH:13].[Cl:13][C:14]1[CH:33]=[CH:32][C:17]([NH:18][C:19]2[C:28]3[C:23](=[CH:24][C:25]([O:31][CH2:63][CH2:62][N:55]([CH3:54])[C:56]4[CH:61]=[CH:60][N:59]=[N:58][CH:57]=4)=[C:26]([O:29][CH3:30])[CH:27]=3)[N:22]=[CH:21][N:20]=2)=[C:16]([F:34])[CH:15]=1

Participants

8

Reactant 5

HCID 313Hydrochloric AcidHCID 11776TriphenylphosphineHCID 220568ethyl N-ethoxycarbonyliminocarbamateHCID 22030726HCID 22030726, compoundHCID 1355137204-(4-Chloro-2-fluorophenylamino)-7-hydroxy-6-methoxyquinazoline

Product 1

HCID 226249874-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-(N-methyl-N-(pyridazin-4-yl)amino)ethoxy)quinazoline hydrochlorideYield 111.9%

Reagents, catalysts & solvents 2

HCID 6344DichloromethaneSolventHCID 21226129Dichloromethane methanolSolvent

Procedure

Diethyl azodicarboxylate (209 mg, 1.2 mmol) was added dropwise to a suspension of 4-(4-chloro-2-fluoroanilino)-7-hydroxy-6-methoxyquinazoline (128 mg, 0.4 mmol), (prepared as described for the starting material in Example 24), triphenylphosphine (314 mg, 1.2 mmol) and 2-(N-methyl-N-(pyridazin-4-yl)amino)ethanol (80 mg, 0.52 mmol) in methylene chloride (5 ml) and the mixture stirred for 2 hours at ambient temperature. The solvent was removed by evaporation, the residue was triturated with ether and the resulting solid was collected by filtration. The solid was purified by column chromatography eluting with methylene chloride/methanol (9/1 followed by 8/2) to give a white solid. This solid was dissolved in methylene chloride/methanol and ethereal hydrogen chloride (0.5 ml of a 4M solution) was added. The volatiles were removed by evaporation, the residue was triturated with ether, collected by filtration and dried under vacuum to give 4-(4-chloro-2-fluoroanilino)-6-methoxy-7-(2-(N-methyl-N-(pyridazin-4-yl)amino)ethoxy)quinazoline hydrochloride (110 mg, 60%).

Workup

  1. custom(prepared
  2. customThe solvent was removed by evaporation
  3. customthe residue was triturated with ether
  4. filtrationthe resulting solid was collected by filtration
  5. customThe solid was purified by column chromatography
  6. washeluting with methylene chloride/methanol (9/1 followed by 8/2)
  7. customto give a white solid
  8. customThe volatiles were removed by evaporation
  9. customthe residue was triturated with ether
  10. filtrationcollected by filtration
  11. customdried under vacuum

Sources & evidence

ORD record
ord-ce3367ea2d724ded88b4c11a1ebc69e4
Source dataset
uspto-grants-1999_10
Patent number
US05962458

Reaction notes

Loading…