Triethylamine → N-[2-[4-(2,4-Dioxothiazolidin-5-ylmethyl)phenoxyacetylamino]-5-methoxyphenyl]-N-methylcarbamic Acid t-butyl Ester

HRID 353490Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 353490
[C:1]([O:5][C:6](=[O:18])[N:7]([C:9]1[CH:14]=[C:13]([O:15][CH3:16])[CH:12]=[CH:11][C:10]=1[NH2:17])[CH3:8])([CH3:4])([CH3:3])[CH3:2].[O:19]=[C:20]1[NH:24][C:23](=[O:25])[CH:22]([CH2:26][C:27]2[CH:37]=[CH:36][C:30]([O:31][CH2:32][C:33](O)=[O:34])=[CH:29][CH:28]=2)[S:21]1.C(N(CC)CC)C.C(=O)([O-])O.[Na+]>C(Cl)Cl.C(OCC)(=O)C>[C:1]([O:5][C:6](=[O:18])[N:7]([C:9]1[CH:14]=[C:13]([O:15][CH3:16])[CH:12]=[CH:11][C:10]=1[NH:17][C:33](=[O:34])[CH2:32][O:31][C:30]1[CH:29]=[CH:28][C:27]([CH2:26][CH:22]2[S:21][C:20](=[O:19])[NH:24][C:23]2=[O:25])=[CH:37][CH:36]=1)[CH3:8])([CH3:4])([CH3:2])[CH3:3]

Komponenten

7

Edukt 4

HCID 8471TriethylamineHCID 516892Sodium BicarbonateHCID 10198914tert-butyl N-(2-amino-5-methoxyphenyl)-N-methylcarbamateHCID 113234852-(4-((2,4-Dioxothiazolidin-5-YL)methyl)phenoxy)acetic acid

Produkt 1

HCID 9936338N-[2-[4-(2,4-Dioxothiazolidin-5-ylmethyl)phenoxyacetylamino]-5-methoxyphenyl]-N-methylcarbamic Acid t-butyl EsterAusbeute 85,1 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

To a suspension at 0° C. of N-(2-amino-5-methoxyphenyl)-N-methylcarbamic acid t-butyl ester (4.2 g) and 4-(2,4-dioxothiazolidin-5-ylmethyl)phenoxyacetic acid (5.2 g) in methylene chloride (30 ml) was added triethylamine (5.1 ml) and 50% propylphosphonic acid cyclic anhydride in ethyl acetate (12.7 g) and the mixture was stirred at the same temperature for 2 hours. At the end of this time to the reaction mixture was added 5% aqueous sodium hydrogencarbonate solution and the mixture was extracted with methylene chloride. The extract was washed with water and diluted hydrochloric acid and concentrated in vacuo. To the residue was added methanol (40 ml) and the precipitated crystals were filtered to give the title compound (7.3 g, yield 85%).

Aufarbeitung

  1. extractionthe mixture was extracted with methylene chloride
  2. washThe extract was washed with water and diluted hydrochloric acid
  3. concentrationconcentrated in vacuo
  4. additionTo the residue was added methanol (40 ml)
  5. filtrationthe precipitated crystals were filtered

Quellen und Nachweise

ORD-Eintrag
ord-4443f8c714e04a14b0561ca5329211d7
Quelldatensatz
uspto-grants-2004_06
Patentnummer
US06753347B2

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