Water → 2-(5-cyano-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide

HRID 246295

Reaktionsgleichung

Reaktionsgleichung von HRID 246295
[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([C:17]3[C:25]4[C:20](=[CH:21][CH:22]=[C:23]([C:26]#[N:27])[CH:24]=4)[N:19]([CH3:28])[N:18]=3)[N:15]=2)[N:10](COCC[Si](C)(C)C)[CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2].FC(F)(F)C(O)=O.C(N)CN.O>ClCCl.C(OCC)(=O)C>[C:1]([NH:5][C:6]([C:8]1[C:16]2[C:11](=[N:12][CH:13]=[C:14]([C:17]3[C:25]4[C:20](=[CH:21][CH:22]=[C:23]([C:26]#[N:27])[CH:24]=4)[N:19]([CH3:28])[N:18]=3)[N:15]=2)[NH:10][CH:9]=1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Komponenten

7

Edukt 4

HCID 962WaterHCID 3301EthylenediamineHCID 6422Trifluoroacetic acidHCID 712803922-(5-cyano-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide

Produkt 1

HCID 712804332-(5-cyano-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamideAusbeute 73 %

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 6344DichloromethaneLösungsmittelHCID 8857Ethyl AcetateLösungsmittel

Versuchsvorschrift

In a round-bottomed flask, 2-(5-cyano-1-methyl-1H-indazol-3-yl)-5-(2-trimethylsilanylethoxymethyl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide (80 mg, 0.16 mmol) was dissolved in dichloromethane (0.8 ml) and trifluoroacetic acid (0.5 ml, 6.4 mmol) was added. The reaction mixture was stirred at room temperature for 2 h then concentrated. The residue was suspended in dichloromethane (0.8 ml) and ethylenediamine (0.65 ml, 9.63 mmol) was added. The light yellow suspension was stirred at room temperature for 1 h then water and ethyl acetate were added. The suspension was filtered and washed with hot water and ethyl acetate. The product collected was dried under high vacuum to provide 43 mg (73%) of 2-(5-cyano-1-methyl-1H-indazol-3-yl)-5H-pyrrolo[2,3-b]pyrazine-7-carboxylic acid tert-butylamide as a yellow powder. MS: (M+Na)+=396; 1H NMR (DMSO-d6, 300 MHz): δ (ppm) 12.48 (br. s., 1H), 9.10 (s, 1H), 8.87 (s, 1H), 8.41 (s, 1H), 7.93-8.05 (m, 1H), 7.78-7.90 (m, 2H), 4.23 (s, 3H), 1.54 (s, 9H).

Aufarbeitung

  1. concentrationthen concentrated
  2. stirringThe light yellow suspension was stirred at room temperature for 1 h
  3. filtrationThe suspension was filtered
  4. washwashed with hot water and ethyl acetate
  5. customThe product collected
  6. customwas dried under high vacuum

Quellen und Nachweise

ORD-Eintrag
ord-38240a3ce6c34b9bb5a5e9bd8e1815e0
Quelldatensatz
uspto-grants-2014_02
Patentnummer
US08658646B2

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