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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1967622Generated: November 1, 2026

Diazald → HCID 53380263, compound

https://huagongshe.com/reaction/1967622

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiazaldHCID 6628—
ReactantPotassium HydroxideHCID 14797—
ReactantHCID 21225595HCID 21225595—
ReactantHCID 67386994HCID 67386994—
SolventMethanolHCID 887—
ProductHCID 53380263HCID 53380263—

Reaction Steps

The compound was synthesized starting from KOH (15 eq in water), diazald (8 eq), ethylene glycol/Et2O (1/2 v/v, 60 ml), 1-(1H-Benzo[d]imidazol-6-yl)-3-hydroxy-4-methyl-5-(4-(piperidin-1-yl)phenyl)-1H-pyrrol-2(5H)-one (0.700 g, 1.88 mmol, 1 eq) and MeOH (20 ml); yield: 0.050 g (7%); MS m/z: 403.1 [M+H]+; 1H-NMR: (400 MHz, DMSO-D6) δ: 8.59 (s, 1H), 7.81 (s, 1H), 7.55-7.53 (m, 1H), 7.45-7.42 (m, 1H), 7.06-7.04 (m, 2H), 6.82-6.79 (m, 2H), 5.69 (s, 1H), 3.93 (s, 3H), 3.05-3.02 (m, 4H), 1.70 (s, 3H), 1.53-1.46 (m, 6H); HPLC (METHOD [A]): rt 6.03 min (99.04%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08420828B2
Source datasetuspto-grants-2013_04
ORD IDord-6518125ea6f44279810eafde428efcd5
Source noteuspto-grants-2013_04