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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1602316Generated: November 2, 2026

Sodium Hydroxide → HCID 178420038, compound

https://huagongshe.com/reaction/1602316

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant1-Phenyl-2-pyridin-4-ylethane-1,2-dioneHCID 275011—
Reactant1-(1H-benzimidazol-2-yl)guanidineHCID 178512594—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 178420038HCID 178420038—

Reaction Steps

Following the procedure of Example 1, 1 -phenyl-2-(4-pyridinyl)ethanedione (500 mg, 2.42 mmol) and 2-guanidinobenzimidazole (1.0 g, 6.0 mmol) in methanol (10 mL) was treated with a solution of sodium hydroxide (40 mg, 1.0 mmol) in 1 mL of water. The title compound was isolated as pale yellow crystals (45 mg, 3% yield). 1H NMR (300 MHz, d6 -DMSO) δ 11.5 (br s, NH, 1 H), 1 1.0 (br.s, NH, 1H), 10.0 (br s, NH, 1 H), 8.6 (br s, NH, 1 H), 8.4 (m, 2 H), 7.4-6.8 (m, 15H); MS (ESI) m/z 526 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05981551
Source datasetuspto-grants-1999_11
ORD IDord-420b071356cf4bac80d20339523f4649
Source noteuspto-grants-1999_11