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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1367977Generated: October 31, 2026

Cyanogen Bromide → HCID 178466833, compound

https://huagongshe.com/reaction/1367977

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCyanogen BromideHCID 10476—
Reactantmethyl 2-amino-1H-benzo[d]imidazole-4-carboxylateHCID 24730367—
ReactantHCID 86608396HCID 86608396—
SolventMethanolHCID 887—
ProductHCID 178466833HCID 178466833—

Reaction Steps

0.8 g (3.7 mmol) of 2,3-diamino-5-ethoxy-4-fluoro-benzoic acid was subjected to a similar cyclization condition as illustrated in intermediate A by using 1.2 g (11.2 mmol) of BrCN in methanol to produce 2-amino-6-ethoxy-7-fluoro-1H-benzoimidazole-4-carboxylic acid. LCMS: 240 (M+1)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07893267B2
Source datasetuspto-grants-2011_02
ORD IDord-750f097f258f4d98a30ef02cbb94435b
Source noteuspto-grants-2011_02