4-Amino-N-methylbenzenemethanesulfonamide → N-methyl-[4-(6-methoxy-4-phenylamino-quinazolin-2-ylamino)-phenyl]-methanesulfonamide

HRID 1603423

Reaktionsgleichung

Reaktionsgleichung von HRID 1603423
Cl[C:2]1[N:11]=[C:10]([NH:12][C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)[C:9]2[C:4](=[CH:5][CH:6]=[C:7]([O:19][CH3:20])[CH:8]=2)[N:3]=1.[CH3:21][NH:22][S:23]([CH2:26][C:27]1[CH:32]=[CH:31][C:30]([NH2:33])=[CH:29][CH:28]=1)(=[O:25])=[O:24]>C(O)CC(C)C.CO>[CH3:21][NH:22][S:23]([CH2:26][C:27]1[CH:32]=[CH:31][C:30]([NH:33][C:2]2[N:11]=[C:10]([NH:12][C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=3)[C:9]3[C:4](=[CH:5][CH:6]=[C:7]([O:19][CH3:20])[CH:8]=3)[N:3]=2)=[CH:29][CH:28]=1)(=[O:24])=[O:25]

Komponenten

5

Edukt 2

HCID 27781314-Amino-N-methylbenzenemethanesulfonamideHCID 226398172-Chloro-6-methoxy-4-phenylamino-quinazoline

Produkt 1

HCID 22639807N-methyl-[4-(6-methoxy-4-phenylamino-quinazolin-2-ylamino)-phenyl]-methanesulfonamide

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 887MethanolLösungsmittelHCID 31260Isoamyl AlcoholLösungsmittel

Versuchsvorschrift

A solution of 2-chloro-6-methoxy-4-phenylamino-quinazoline (1.15 g) and N-methyl-(4-aminophenyl)-methanesulfonamide (prepared as described in Tetrahedron Letters 1992, 33, 8011) (0.89 g) in 5 mL of isopentylalcohol is stirred under nitrogen at 180° C. for 20 min in a sealed vessel. The warm reaction mixture is diluted with methanol and the hydrochloride salt, which is crystallizing on cooling, is filtered off. The crude product is redissolved in ethylacetate and aqueous sodium carbonate solution and extracted with ethylacetate. The organic extracts are dried and evaporated and the solid residue is titurated with diethylether to give N-methyl-[4-(6-methoxy-4-phenylamino-quinazolin-2-ylamino)-phenyl]-methanesulfonamide as light yellow crystals melting at 212-215° C.; (Rf (A2) 0.16. Recrystallisation from methanolic hydrogen chloride and diethylether yields N-methyl-[4-(6-methoxy-4-phenylamino-quinazolin-2-ylamino)-phenyl]-methanesulfonamide hydrochloride as light yellow crystals melting at 264-268° C.; Rf (A2) 0.16, FAB-MS: (M+H)+ =450. Analytical data: C23H23N5O3S+HCl.

Aufarbeitung

  1. customThe warm reaction mixture
  2. customthe hydrochloride salt, which is crystallizing
  3. temperatureon cooling
  4. filtrationis filtered off
  5. dissolutionThe crude product is redissolved in ethylacetate
  6. extractionaqueous sodium carbonate solution and extracted with ethylacetate
  7. customThe organic extracts are dried
  8. customevaporated

Quellen und Nachweise

ORD-Eintrag
ord-2262df47f1c44c0baaa00d73d46fcecc
Quelldatensatz
uspto-grants-1999_11
Patentnummer
US05989920

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