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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2388597Generated: November 4, 2026

Diazald → HCID 53380074, compound

https://huagongshe.com/reaction/2388597

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazaldHCID 6628—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 21225595HCID 21225595—
ReactantHCID 67386804HCID 67386804—
SolventMethanolHCID 887—
ProductHCID 53380074HCID 53380074—

Reaction Steps

The compound was synthesized starting from KOH (15 eq in water), diazald (9 eq), ethylene glycol/Et2O (1/7.5 v/v, 17 ml), 1-(1H-Benzo[d]imidazol-6-yl)-5-(2,3-difluorophenyl)-4-isopropyl-3-hydroxy-1H-pyrrol-2(5H)-one (0.15 g, 0.34 mmol, 1 eq) and MeOH (10 ml), the product was further purified by prep TLC; yield: 0.040 g (10.4%); MS m/z: 384.1 [M+H]+;1H-NMR: (400 MHz, CDCl3) δ: 7.88 (s, 1H), 7.80 (bs, 1H), 7.52 (bs, 1H), 7.2-6.88 (m, 4H), 6.0 (s, 1H), 4.08 (s, 3H), 2.61 (bs, 1H), 1.1-1.04 (m, 6H); HPLC (METHOD [A]): rt 14.51 min (96.9%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08269019B2
Source datasetuspto-grants-2012_09
ORD IDord-14251cd9e62b4c7ca8ce591c08d3aaa1
Source noteuspto-grants-2012_09