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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1910238Generated: November 2, 2026

Cyanogen Bromide → 2-amino-5-methoxy-1H-benzoimidazole-4-carboxylic acid

https://huagongshe.com/reaction/1910238

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanogen BromideHCID 10476—
ReactantHCID 11030440HCID 11030440—
Reactantmethyl 2-amino-1H-benzo[d]imidazole-4-carboxylateHCID 24730367—
SolventMethanolHCID 887—
Product2-amino-5-methoxy-1H-benzoimidazole-4-carboxylic acidHCID 66940400—

Reaction Steps

0.8 g (4.4 mmol) of 2,3-diamino-6-methoxy-benzoic acid was subjected to a similar cyclization condition as illustrated in intermediate A by using 0.7 g (6.6 mmol) of BrCN in methanol to produce 2-amino-5-methoxy-1H-benzoimidazole-4-carboxylic acid. LCMS: 208 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08598353B2
Source datasetuspto-grants-2013_12
ORD IDord-eb31c86c8c234f919ec6b313a06f1398
Source noteuspto-grants-2013_12