Acetic Anhydride → N-(4,5,6,7-tetrahydro-5-(5,6-dimethoxypyrazin-2-yl)thiazolo[5,4-c]pyridin-2-yl)acetamide

HRID 39360Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 39360
[CH3:1][O:2][C:3]1[N:4]=[CH:5][C:6]([N:11]2[CH2:16][CH2:15][C:14]3[N:17]=[C:18]([NH2:20])[S:19][C:13]=3[CH2:12]2)=[N:7][C:8]=1[O:9][CH3:10].CCN(C(C)C)C(C)C.[C:30](OC(=O)C)(=[O:32])[CH3:31]>C(Cl)Cl>[CH3:1][O:2][C:3]1[N:4]=[CH:5][C:6]([N:11]2[CH2:16][CH2:15][C:14]3[N:17]=[C:18]([NH:20][C:30](=[O:32])[CH3:31])[S:19][C:13]=3[CH2:12]2)=[N:7][C:8]=1[O:9][CH3:10]

Komponenten

5

Edukt 3

HCID 7918Acetic AnhydrideHCID 81531DiisopropylethylamineHCID 866619525-(5,6-Dimethoxypyrazin-2-yl)-4,5,6,7-tetrahydrothiazolo[5,4-c]pyridin-2-amine

Produkt 1

HCID 46872069N-(4,5,6,7-tetrahydro-5-(5,6-dimethoxypyrazin-2-yl)thiazolo[5,4-c]pyridin-2-yl)acetamideAusbeute 49,2 %

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

As shown in step 9-vi of Scheme 9, to a solution of Compound 1032 (65.4 mg, 0.223 mmol) in DCM (2 mL) was added DIEA (200 μL, 1.148 mmol) and acetic anhydride (200 μL, 2.12 mmol). The reaction solution was stirred at room temperature for 150 min and the crude produce purified by medium pressure silica gel chromatography (10 to 80% EtOAc in Hexanes) to give N-(4,5,6,7-tetrahydro-5-(5,6-dimethoxypyrazin-2-yl)thiazolo[5,4-c]pyridin-2-yl)acetamide (Compound 14, 36.8 mg) as an off white solid, which was salted as its mono-mesylate salt to yield a beige solid: ESMS (M+H) 336.12; 1H NMR (300.0 MHz, DMSO-d6) δ 7.31 (s, 1H), 4.55 (s, 2H), 3.91 (m, 3H), 3.83 (m, 5H), 2.73 (t, J=5.4 Hz, 2H), 2.39 (d, J=0.6 Hz, 3H) and 2.12 (s, 3H) ppm.

Aufarbeitung

  1. customthe crude produce
  2. custompurified by medium pressure silica gel chromatography (10 to 80% EtOAc in Hexanes)

Quellen und Nachweise

ORD-Eintrag
ord-0912db0cd489499ea55d404d14a6cb45
Quelldatensatz
uspto-grants-2013_09
Patentnummer
US08524906B2

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