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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1986264Generated: October 29, 2026

tert-Butyl 4-(2-aminoethyl)piperazine-1-carboxylate → 2-[5-Bromo-2-(2-piperazin-1-ylethylamino)-pyrimidin-4-yl]-benzo[b]thiophene-4-carboxylic acid cyclopropylamide tri-hydrochloride

https://huagongshe.com/reaction/1986264

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 4-(2-aminoethyl)piperazine-1-carboxylateHCID 1514400—
Reactant2-[5-Chloro-2-(2-piperidin-4-yl-ethylamino)-pyrimidin-4-yl]-benzo[b]thiophene-4-carboxylic acid cyclopropylamide di-hydrochlorideHCID 68857850—
Reactant2-(5-Bromo-2-chloropyrimidin-4-yl)-benzo[b]thiophene-4-carboxylic acid cyclopropylamideHCID 86625343—
Product2-[5-Bromo-2-(2-piperazin-1-ylethylamino)-pyrimidin-4-yl]-benzo[b]thiophene-4-carboxylic acid cyclopropylamide tri-hydrochlorideHCID 68906185—

Reaction Steps

Using the synthetic method of 2-[5-chloro-2-(2-piperidin-4-ylethylamino)-pyrimidin-4-yl]-benzo[b]thiophene-4-carboxylic acid cyclopropylamide di-hydrochloride, the title compound is synthesized from 2-(5-bromo-2-chloropyrimidin-4-yl)-benzo[b]thiophene-4-carboxylic acid cyclopropylamide and 4-(2-aminoethyl)-piperazine-1-carboxylic acid tert-butyl ester and isolated as a yellow solid (67% yield). ES+(m/z) 501 (79Br) and 503 (81Br) [M(free base)+H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07547691B2
Source datasetuspto-grants-2009_06
ORD IDord-393240e2d0dd4710aa128b703ff15bb7
Source noteuspto-grants-2009_06