1-Hydroxybenzotriazole → N-methyl-5-nitro-1H-indazole-3-carboxamide

HRID 1038004

Reaktionsgleichung

Reaktionsgleichung von HRID 1038004
[N+:1]([C:4]1[CH:5]=[C:6]2[C:10](=[CH:11][CH:12]=1)[NH:9][N:8]=[C:7]2[C:13]([OH:15])=O)([O-:3])=[O:2].Cl.CN.C1C=CC2N(O)N=[N:25][C:23]=2C=1.CCN(C(C)C)C(C)C.Cl.CN(C)CCCN=C=NCC>CN1CCCC1=O.C(OCC)(=O)C>[CH3:23][NH:25][C:13]([C:7]1[C:6]2[C:10](=[CH:11][CH:12]=[C:4]([N+:1]([O-:3])=[O:2])[CH:5]=2)[NH:9][N:8]=1)=[O:15]

Komponenten

8

Edukt 5

HCID 757711-HydroxybenzotriazoleHCID 81531DiisopropylethylamineHCID 27239391,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 6364545Methylamine hydrochlorideHCID 71446525-nitro-1H-indazole-3-carboxylic Acid

Produkt 1

HCID 45810073N-methyl-5-nitro-1H-indazole-3-carboxamideAusbeute 63 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8857Ethyl AcetateLösungsmittelHCID 13387N-methyl-2-pyrrolidoneLösungsmittel

Versuchsvorschrift

To a solution of compound 54 (100 mg, 0.483 mmol), methylamine hydrochloride (52.2 mg, 0.773 mmol), HOBt (130 mg, 0.966 mmol) and DIEA (0.34 mL, 1.95 mmol) in N-methylpyrrolidinone was added 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (148 mg, 0.773 mmol). The reaction was stirred at room temperature for 2 hrs and diluted with 10 mL of ethyl acetate. The mixture was washed with water and a yellow solid precipitated. The precipitate was collected by filtration to give compound 55 (67 mg).

Aufarbeitung

  1. washThe mixture was washed with water
  2. customa yellow solid precipitated
  3. filtrationThe precipitate was collected by filtration

Quellen und Nachweise

ORD-Eintrag
ord-335486c23e0a485da576a6cc9d5265b4
Quelldatensatz
uspto-grants-2013_10
Patentnummer
US08546404B2

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