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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524727Generated: October 30, 2026

N-bromobutanimide → Ethyl 6-(bromomethyl)-4-(2-chloro-4-fluorophenyl)-2-(pyrazin-2-yl)-1,4-dihydropyrimidine-5-carboxylate

https://huagongshe.com/reaction/524727

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
ReactantEthyl 4-(2-chloro-4-fluorophenyl)-6-methyl-2-(pyrazin-2-yl)-1,4-dihydropyrimidine-5-carboxylateHCID 118107549—
ProductEthyl 6-(bromomethyl)-4-(2-chloro-4-fluorophenyl)-2-(pyrazin-2-yl)-1,4-dihydropyrimidine-5-carboxylateHCID 11810754365%

Reaction Steps

Ethyl 4-(2-chloro-4-fluorophenyl)-6-methyl-2-(pyrazin-2-yl)-1,4-dihydropyrimidine-5-carboxylate (5.02 g, 13.4 mmol) was reacted with NBS (2.87 g, 16.1 mmol) according to the procedure as described in Example 1, Step B to give the title compound as a yellow solid (3.95 g, 65%). The compound was characterized by the following spectroscopic data:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340538B2
Source datasetuspto-grants-2016_05
ORD IDord-f4f351bc9e5541ebb87e378b3b56339b
Source noteuspto-grants-2016_05