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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1967617Generated: November 2, 2026

Diazald → HCID 53380165, compound

https://huagongshe.com/reaction/1967617

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazaldHCID 6628—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 21225595HCID 21225595—
ReactantHCID 67387268HCID 67387268—
SolventMethanolHCID 887—
ProductHCID 53380165HCID 53380165—

Reaction Steps

The compound was synthesized starting from KOH (15 eq in water), diazald (9 eq), ethylene glycol/Et2O (1/2.8 v/v, 34 ml), 1-(1H-Benzo[d]imidazol-6-yl)-5-(2,3-difluorophenyl)-3-hydroxy-4-phenyl-1H-pyrrol-2(5H)-one (1 g, 2.48 mmol, 1 eq) and MeOH (10 ml); yield: 0.160 g (60%); MS m/z: 418.1 [M+H]+; 1H-NMR: (400 MHz, CDCl3) δ: 7.87 (s, 1H), 7.74 (s, 1H), 7.58-7.50 (m, 3H), 7.36-7.2 (m, 5H), 4.18 (s, 3H); HPLC (METHOD [A]): rt 14.70 min (99.68%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420828B2
Source datasetuspto-grants-2013_04
ORD IDord-8397d606cdca402a981d34422cd923d1
Source noteuspto-grants-2013_04