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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1349109Generated: October 26, 2026

O-Phenylenediamine → 4-{[(2S,4EZ)-2-(1H-benzimidazol-2-yl)-4-(cyanomethylene)pyrrolidinyl]-carbonyl}benzonitrile

https://huagongshe.com/reaction/1349109

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-PhenylenediamineHCID 7243—
Reactant4-Cyanobenzoyl chlorideHCID 80172—
Reactant(2S,4EZ)-1-(tertbutoxycarbonyl)-4-(cyanomethylene)-2-pyrrolidinecarboxylic acidHCID 69250314—
Product4-{[(2S,4EZ)-2-(1H-benzimidazol-2-yl)-4-(cyanomethylene)pyrrolidinyl]-carbonyl}benzonitrileHCID 69247878—

Reaction Steps

Following the general method as outlined in Example 22, starting from (2S,4EZ)-1-(tert-butoxycarbonyl)-4-(cyanomethylene)-2-pyrrolidinecarboxylic acid, 4-cyanobenzoyl chloride, and 1,2-benzenediamine the title compound was obtained in 84% purity by LC/MS. MS(ESI+): m/z=354.2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07211601B2
Source datasetuspto-grants-2007_05
ORD IDord-0e74bfacbc064b35adf555294952edb6
Source noteuspto-grants-2007_05