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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1693576Generated: October 30, 2026

Sulfuric Acid → HCID 57897964, compound

https://huagongshe.com/reaction/1693576

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantSodium CarbonateHCID 10340—
ReactantSodium NitriteHCID 23668193—
ReactantHCID 57897833HCID 57897833—
SolventWaterHCID 962—
SolventAcetonitrileHCID 6342—
ProductHCID 57897964HCID 57897964—

Reaction Conditions

Temperature100 °C

Reaction Steps

A solution of 2-[4-(6-amino-pyridin-3-yl)-phenyl]-1-(4-chloro-phenyl)-9-phenyl-1,9-dihydro-purin-6-one (10 mg, 0.02 mmol) in acetonitrile (0.4 mL) and H2O (0.4 mL) was treated with NaNO2 and 5 μL of concentrated H2SO4. The reaction mixture was heated at 100° C. for 1 h. The reaction was allowed to cool to room temperature and neutralized with aqueous Na2CO3. The reaction was diluted with H2O and extracted with EtOAc. The combined organics were dried (MgSO4), filtered, and concentrated. The resulting crude material was purified by preparative LCMS to provide the title compound 1-(4-chloro-phenyl)-2-[4-(6-oxo-1,6-dihydro-pyridin-3-yl)-phenyl]-9-phenyl-1,9-dihydro-purin-6-one_as a white solid. 1H NMR (CDCl3) δ (ppm) 8.21 (s, 1H), 8.01 (dd, 1H), 7.81 (d, 1H), 7.58 (apparent t, 2H), 7.49 (m, 1H), 7.39 (d, 2H), 7.33 (m, 3H), 7.14 (d, 2H), 6.98 (d, 1H); HPLC-MS calculated for C28H18ClN5O2 (M+H+): 492.1. Found: 492.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08158634B2
Source datasetuspto-grants-2012_04
ORD IDord-5287f2703e0a4c0b80aff18acc791865
Source noteuspto-grants-2012_04