Potassium Hydroxide → Ethyl 1-[5-[2-(ethylcarbamoylamino)-7-ethynyl-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate

HRID 712311Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 712311
[CH2:1]([NH:3][C:4]([NH:6][C:7]1[S:8][C:9]2[C:15]([C:16]#[C:17][Si](C)(C)C)=[CH:14][C:13]([C:22]3[CH:23]=[N:24][C:25]([N:28]4[CH2:33][CH2:32][C:31]([CH3:39])([C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:30][CH2:29]4)=[N:26][CH:27]=3)=[CH:12][C:10]=2[N:11]=1)=[O:5])[CH3:2].[OH-].[K+]>CCO>[CH2:1]([NH:3][C:4]([NH:6][C:7]1[S:8][C:9]2[C:15]([C:16]#[CH:17])=[CH:14][C:13]([C:22]3[CH:27]=[N:26][C:25]([N:28]4[CH2:29][CH2:30][C:31]([CH3:39])([C:34]([O:36][CH2:37][CH3:38])=[O:35])[CH2:32][CH2:33]4)=[N:24][CH:23]=3)=[CH:12][C:10]=2[N:11]=1)=[O:5])[CH3:2]

Komponenten

4

Edukt 2

HCID 14797Potassium HydroxideHCID 86664024Ethyl 1-[5-[2-(ethylcarbamoylamino)-7-(2-trimethylsilylethynyl)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate

Produkt 1

HCID 86663977Ethyl 1-[5-[2-(ethylcarbamoylamino)-7-ethynyl-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylateAusbeute 83,7 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 702EthanolLösungsmittel

Versuchsvorschrift

To an ice-cold solution of ethyl 1-[5-[2-(ethylcarbamoylamino)-7-(2-trimethylsilylethynyl)-1,3-benzothiazol-5-yl]pyrimidin-2-yl]-4-methyl-piperidine-4-carboxylate (1.1 g, 1.94 mmol) in EtOH (40 mL) was added powdered KOH (0.24 g, 4.21 mmol) and the mixture stirred at rt for 4 h. After completion of reaction (by TLC), the solvent was evaporated under reduced pressure, water added and extracted with EtOAc (3×100 mL). The combined organic layer was washed with brine and water then dried over anhydrous Na2SO4. Solvent was evaporated under reduced pressure to obtain the product as a pale yellow solid (0.8 g, 83% yield). 1H NMR (DMSO-d6): δ 1.11 (t, J=7.20 Hz, 3H), 1.21 (m, 6H), 1.42 (m, 2H), 2.04 (m, 2H), 3.20 (m, 2H), 3.33 (q, J=7.20, 2H), 4.13 (q, J=6.80 Hz, 2H), 4.25 (m, 2H), 4.67 (s, 1H), 6.80 (br s, 1H), 7.61 (s, 1H), 7.94 (s, 1H); 8.78 (s, 2H) and 10.86 (br s, 1H). MS: 493.12 [M+H]+.

Aufarbeitung

  1. customAfter completion of reaction (by TLC)
  2. customthe solvent was evaporated under reduced pressure, water
  3. additionadded
  4. extractionextracted with EtOAc (3×100 mL)
  5. washThe combined organic layer was washed with brine and water
  6. dry with materialthen dried over anhydrous Na2SO4
  7. customSolvent was evaporated under reduced pressure

Quellen und Nachweise

ORD-Eintrag
ord-9037c72c665048ea847e609e8cafdcb4
Quelldatensatz
uspto-grants-2015_11
Patentnummer
US09181234B2

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