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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1967615Generated: November 2, 2026

Diazald → HCID 53380073, compound

https://huagongshe.com/reaction/1967615

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazaldHCID 6628—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 21225595HCID 21225595—
ReactantHCID 67387420HCID 67387420—
SolventMethanolHCID 887—
ProductHCID 53380073HCID 53380073—

Reaction Steps

The compound was synthesized starting from KOH (15 eq in water), diazald (9 eq), ethylene glycol/Et2O (1/3 v/v, 40 ml), 1-(1H-Benzo[d]imidazol-6-yl)-5-(2,3-difluorophenyl)-3-hydroxy-4-propyl-1H-pyrrol-2(5H)-one (1.0 g, 2.71 mmol, 1 eq) and MeOH (10 ml), the product was further purified by preparative HPLC; yield: 0.120 g (11.6%); MS m/z: 384.1 [M+H]+; 1H-NMR: (400 MHz, CDCl3) δ: 0.96 (t, 3H), 1.6-1.4 (m, 6H), 1.94-1.87 (m, 1H), 2.47-2.39 (m, 1H), 4.08 (s, 3H), 5.90 (bs, 1H), 6.92 (bs, 1H), 7.03-6.94 (m, 2H), 7.54 (bs, 1H), 7.83 (s, 1H), 7.94 (s, 1H); HPLC (METHOD [A]): rt 14.38 min (100%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420828B2
Source datasetuspto-grants-2013_04
ORD IDord-ea71ae43b8f64cd7b608e67f9ee6c10a
Source noteuspto-grants-2013_04