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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 646715Generated: October 30, 2026

Water → HCID 178485578, compound

https://huagongshe.com/reaction/646715

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 68650453HCID 68650453—
SolventDimethylformamideHCID 6228—
ProductHCID 178485578HCID 17848557862.6%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a stirred solution of 3-amino-6-{3-[amino(imino)methyl]phenyl}-N-methylpyrazine-2-carboxamide (0.13 6 mg, 0.5 mmol) in DMF (5 mL) was added bronoacetophenone (0.11 g, 0.55 mmol ) followed by K2CO3 (0.276 g). The resulting mixture was heated at 70 ° C. for 0.5 h. The mixture was poured into water (30 mL) and extracted with ethyl acetate (30 mL). The extract was washed with brine, dried (Na2SO4), and concentrated. The product was purified by hplc to provide 3-amino-N-methyl-6-[3-(4-phenyl-1H-imidazol-2-yl)phenyl]pyrazine-2-carboxamide (58 mg): 1H NMR (400 MHz; DMSO-d6): 8.94 (s, 1H); 8.82 (m, 1H); 8.62 (s, 1H); 8.2 (d, 1H); 8.04 (d, 1H); 7.9-7.78 (m, 3H); 7.58 (t, 1H); 7.38 (m, 2H); 7.24 (t, 1H); 2.82 (d, 3H); MS (EI) for C21H18N6O: 371 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07704995B2
Source datasetuspto-grants-2010_04
ORD IDord-d36bf24c2dc74e84b215ee8004cc0b1f
Source noteuspto-grants-2010_04