Water → 5-(1-(6-Fluoroquinazolin-2-YL)piperidin-4-YL)-7,7-dimethyl-5H-pyrrolo[2,3-B]pyrazin-6(7H)-one

HRID 707397Notes

Reaction equation

Cl.[CH3:2][C:3]1([CH3:19])[C:11]2[C:6](=[N:7][CH:8]=[CH:9][N:10]=2)[N:5]([CH:12]2[CH2:17][CH2:16][NH:15][CH2:14][CH2:13]2)[C:4]1=[O:18].Cl[C:21]1[N:30]=[CH:29][C:28]2[C:23](=[CH:24][CH:25]=[C:26]([F:31])[CH:27]=2)[N:22]=1.C(=O)([O-])[O-].[K+].[K+].O>CS(C)=O>[F:31][C:26]1[CH:27]=[C:28]2[C:23](=[CH:24][CH:25]=1)[N:22]=[C:21]([N:15]1[CH2:16][CH2:17][CH:12]([N:5]3[C:6]4=[N:7][CH:8]=[CH:9][N:10]=[C:11]4[C:3]([CH3:19])([CH3:2])[C:4]3=[O:18])[CH2:13][CH2:14]1)[N:30]=[CH:29]2

Participants

Conditions

Temperature: 110 °C

Procedure

A mixture of 7,7-dimethyl-5-(piperidin-4-yl)-5H-pyrrolo[2,3-b]pyrazin-6(7H)-one hydrochloride (Intermediate 78) (0.088 g, 0.311 mmol), 2-chloro-6-fluoroquinazoline (0.063 g, 0.342 mmol), and potassium carbonate (0.129 g, 0.934 mmol) in DMSO (3 mL) was heated at 110° C. overnight. The mixture was cooled, H2O was added, and the solid was collected, dried, and purified by ISCO (40% EtOAc/Hexanes) to give the title compound (43 mg, 35%). MS (M+1): 393. 1H NMR (400 MHz, DMSO-d6) δ ppm 9.23 (1 H, s), 8.08 (1 H, d, J=3.1 Hz), 8.12 (1 H, d, J=3.1 Hz), 7.62-7.74 (2 H, m), 7.46-7.62 (1 H, m), 5.00 (2 H, d, J=13.5 Hz), 4.47-4.67 (1 H, m), 2.97-3.14 (2 H, m), 2.36-2.48 (2 H, m), 1.80 (2 H, d, J=9.6 Hz), 1.32 (6 H, s).

Workup

temperatureThe mixture was cooled
customthe solid was collected
customdried
custompurified by ISCO (40% EtOAc/Hexanes)

Sources & evidence

ORD record: ord-5d160f831a8f44ee89d77130086b8bd2
Source dataset: uspto-grants-2015_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09174992B2

Reaction notes

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