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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1967618Generated: November 1, 2026

Diazald → HCID 53380166, compound

https://huagongshe.com/reaction/1967618

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazaldHCID 6628—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 21225595HCID 21225595—
ReactantHCID 67387552HCID 67387552—
SolventMethanolHCID 887—
ProductHCID 53380166HCID 53380166—

Reaction Steps

The compound was synthesized starting from KOH (15 eq in water), diazald (8 eq), ethylene glycol/Et2O (1/4.2 v/v, 31 ml), 1-(1H-Benzo[d]imidazol-6-yl)-5-(2,3-difluorophenyl)-4-(4-fluorophenyl)-3-hydroxy-1H-pyrrol-2(5H)-one (0.5 g, 1.2 mmol, 1 eq) and MeOH (10 ml); yield: 0.160 g (60%); MS m/z: 436.1 [M+H]+; 1H-NMR: (400 MHz, DMSO-D6) δ: 10.5 (b, 1H), 7.88 (s, 1H), 7.72 (s, 1H), 7.59-7.56 (m, 1H), 7.26-7.00 (m, 4H), 6.91-6.86 (m, 3H), 6.38 (bs, 1H), 4.20 (s, 3H); HPLC (METHOD [A]): rt 15.20 min (97.35%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420828B2
Source datasetuspto-grants-2013_04
ORD IDord-6958c2a4447c47eb911fa27e2be9d883
Source noteuspto-grants-2013_04