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Sodium Hydroxide → 2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxy piperidin-1-yl]-4-[5-(piperidin-1-yl)pyrazin-2-yl]-1,3-thiazole-5-carboxylic acid

HRID 655740
Notizen
Druckvorschau

Reaktionsgleichung

Reaktionsgleichung von HRID 655740
[Cl:1][C:2]1[C:6]([Cl:7])=[C:5]([CH3:8])[NH:4][C:3]=1[C:9]([NH:11][C@@H:12]1[CH2:17][CH2:16][N:15]([C:18]2[S:19][C:20]([C:35]([O:37]CC)=[O:36])=[C:21]([C:23]3[CH:28]=[N:27][C:26]([N:29]4[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]4)=[CH:25][N:24]=3)[N:22]=2)[CH2:14][C@@H:13]1[O:40][CH2:41][CH3:42])=[O:10].[OH-].[Na+]>CO>[Cl:1][C:2]1[C:6]([Cl:7])=[C:5]([CH3:8])[NH:4][C:3]=1[C:9]([NH:11][C@@H:12]1[CH2:17][CH2:16][N:15]([C:18]2[S:19][C:20]([C:35]([OH:37])=[O:36])=[C:21]([C:23]3[CH:28]=[N:27][C:26]([N:29]4[CH2:34][CH2:33][CH2:32][CH2:31][CH2:30]4)=[CH:25][N:24]=3)[N:22]=2)[CH2:14][C@@H:13]1[O:40][CH2:41][CH3:42])=[O:10]
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Komponenten

4

Edukt 2

HCID 14798Sodium HydroxideHCID 59402461ethyl 2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl]-4-[5-(piperidin-1-yl)pyrazin-2-yl]-1,3-thiazole-5-carboxylate

Produkt 1

HCID 594025252-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxy piperidin-1-yl]-4-[5-(piperidin-1-yl)pyrazin-2-yl]-1,3-thiazole-5-carboxylic acidAusbeute 31,8 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 887
Methanol
Lösungsmittel

Versuchsvorschrift

To the solution of ethyl 2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxypiperidin-1-yl]-4-[5-(piperidin-1-yl)pyrazin-2-yl]-1,3-thiazole-5-carboxylate (Example 67, 120 mg, 0.188 mmol) in methanol (20 mL) was added 2N sodium hydroxide (3 mL) in a dropwise fashion at 0° C. The reaction mixture was stirred overnight and then concentrated under reduced pressure to dryness. The resulting residue was diluted with water (20 mL) and extracted with ethyl acetate to remove any organic impurities. The aqueous layer was passed through celite bed and acidified with 2N hydrochloric acid. The precipitated product was collected by filtration and dried to afford 35 mg (31.8%) of 2-[(3S,4R)-4-{[(3,4-dichloro-5-methyl-1H-pyrrol-2-yl)carbonyl]amino}-3-ethoxy piperidin-1-yl]-4-[5-(piperidin-1-yl)pyrazin-2-yl]-1,3-thiazole-5-carboxylic acid as a yellow solid.

Aufarbeitung

  1. concentrationconcentrated under reduced pressure to dryness
  2. additionThe resulting residue was diluted with water (20 mL)
  3. extractionextracted with ethyl acetate
  4. customto remove any organic impurities
  5. filtrationThe precipitated product was collected by filtration
  6. customdried

Quellen und Nachweise

ORD-Eintrag
ord-fae2bf4e7a584e38937584258980d524
Quelldatensatz
uspto-grants-2011_12
DOI
10.6084/m9.figshare.5104873.v1
Patentnummer
US08071605B2

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