Acetic Acid → HCID 57448664, compound

HRID 336801

Reaction equation

[Cl:1][C:2]1[CH:7]=[C:6]([NH:8][C:9]2[C:10]([NH:19][S:20]([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([N+:29]([O-:31])=[O:30])[CH:24]=3)(=[O:22])=[O:21])=[N:11][C:12]3[C:17]([N:18]=2)=[CH:16][CH:15]=[CH:14][CH:13]=3)[CH:5]=[C:4](Cl)[N:3]=1.CS(C)=O.C[O-].[Na+].[C:40](O)(=[O:42])C>CCOC(C)=O.O>[Cl:1][C:2]1[CH:7]=[C:6]([NH:8][C:9]2[C:10]([NH:19][S:20]([C:23]3[CH:28]=[CH:27][CH:26]=[C:25]([N+:29]([O-:31])=[O:30])[CH:24]=3)(=[O:22])=[O:21])=[N:11][C:12]3[C:17]([N:18]=2)=[CH:16][CH:15]=[CH:14][CH:13]=3)[CH:5]=[C:4]([O:42][CH3:40])[N:3]=1

Participants

Conditions

Temperature: 100 °C

Procedure

To a crude product of N-{3-[(2,6-dichloropyridin-4-yl)amino]quinoxalin-2-yl}-3-nitrobenzenesulfonamide (1.24 g) prepared using procedures similar to those for Example 151, was added anhydrous DMSO (10 mL), followed by sodium methoxide (273 mg). The resulting mixture was heated at 100° C. for 3 days. The mixture was diluted with EtOAc and water, and the pH was adjusted to about 4 by adding acetic acid. The product was extracted with EtOAc (3×). The combined extracts were washed with brine to give the crude product. A portion of the crude product was purified by prep HPLC to give N-(3-{[2-chloro-6-(methyloxy)pyridin-4-yl]amino}quinoxalin-2-yl)-3-nitrobenzenesulfonamide. 1H NMR (400 MHz, DMSO) δ 9.44 (s, 1H), 8.90 (s, 1H), 8.50 (d, 1H), 8.42 (d, 1H), 7.88-7.84 (m, 2H), 7.77 (s, 1H), 7.74 (s, 1H), 7.64 (d, 1H), 7.45-7.38 (m, 2H), 3.82 (s, 3H); MS (EI) m/z for C20H15ClN6O5S: 496.94 (MH+).

Workup

extractionThe product was extracted with EtOAc (3×)
washThe combined extracts were washed with brine
customto give the crude product
customA portion of the crude product was purified by prep HPLC

Sources & evidence

ORD record: ord-0d21021e536941e5b5037f602f3446df
Source dataset: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08889664B2

Linked notes

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