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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1367950Generated: October 29, 2026

Cyanogen Bromide → HCID 66940226, compound

https://huagongshe.com/reaction/1367950

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanogen BromideHCID 10476—
Reactantmethyl 2-amino-1H-benzo[d]imidazole-4-carboxylateHCID 24730367—
Reactant2,3-Diamino-5-ethoxy-benzoic acid ethyl esterHCID 66940723—
SolventMethanolHCID 887—
ProductHCID 66940226HCID 66940226—

Reaction Steps

4.0 g (17.9 mmol) of 2,3-diamino-5-ethoxy-benzoic acid ethyl ester was subjected to a similar cyclization condition as illustrated in intermediate A by using 5.7 g (53.7 mmol) of BrCN in methanol to produce 2-amino-6-ethoxy-1H-benzoimidazole-4-carboxylic acid ethyl ester. LCMS: 250 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893267B2
Source datasetuspto-grants-2011_02
ORD IDord-2e0206f73ae64aa590ab95b36b46c137
Source noteuspto-grants-2011_02