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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2427109Generated: November 4, 2026

2-Amino-3,5-dibromobenzoic acid → 2-[4-bromo-5-chloro-1-(3-chloro-2-pyridinyl)-1H-pyrrol-2-yl]-6,8-dibromo-4H-3,1-benzoxazine-4-one

https://huagongshe.com/reaction/2427109

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Amino-3,5-dibromobenzoic acidHCID 219491—
Reactant2-Amino-5-chloro-3-methylbenzoic acidHCID 11644044—
Reactant4-bromo-5-chloro-1-(3-chloro-2-pyridinyl)-1H-pyrrole-2-carboxylic acidHCID 66854322—
Reactant4-bromo-1-(3-chloro-2-pyridinyl)-1H-pyrrole-2-carboxylic acidHCID 66854487—
Product2-[4-bromo-5-chloro-1-(3-chloro-2-pyridinyl)-1H-pyrrol-2-yl]-6,8-dibromo-4H-3,1-benzoxazine-4-oneHCID 66854123—

Reaction Steps

According to the same manner as that of Reference Preparation Example 71-(5), 4-bromo-5-chloro-1-(3-chloro-2-pyridinyl)-1H-pyrrole-2-carboxylic acid and 2-amino-3,5-dibromobenzoic acid were used in place of 4-bromo-1-(3-chloro-2-pyridinyl)-1H-pyrrole-2-carboxylic acid and 2-amino-5-chloro-3-methylbenzoic acid respectively to obtain 2-[4-bromo-5-chloro-1-(3-chloro-2-pyridinyl)-1H-pyrrol-2-yl]-6,8-dibromo-4H-3,1-benzoxazine-4-one of the formula:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07968573B2
Source datasetuspto-grants-2011_06
ORD IDord-5bad15b1cf1249ad9b06293cf9d7618d
Source noteuspto-grants-2011_06