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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1986255Generated: October 25, 2026

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

https://huagongshe.com/reaction/1986255

Reaction equation

Participants

RoleNameHCIDCharge
Reactanttert-Butyl 4-(2-aminoethyl)piperazine-1-carboxylateHCID 1514400—
Reactant[4-(Benzo[b]thiophen-2-yl)-pyrimidin-2-yl]-[3-(4-methylpiperazin-1-yl)-propyl]-amine tri-hydrochlorideHCID 68855962—
Reactant2-(2,5-Dichloropyrimidin-4-yl)-benzo[b]thiophene-4-carboxylic acid cyclopropylamideHCID 86625351—
Product2-[5-Chloro-2-(2-piperazin-1-ylethylamino)-pyrimidin-4-yl]-benzo[b]thiophene-4-carboxylic acid cyclopropylamide tri-hydrochlorideHCID 68857404—

Reaction Steps

Using the method of [4-(benzo[b]thiophen-2-yl)-pyrimidin-2-yl]-[3-(4-methylpiperazin-1-yl)-propyl]-amine tri-hydrochloride, the title compound is synthesized from 2-(2,5-dichloro-pyrimidin-4-yl)-benzo[b]thiophene-4-carboxylic acid cyclopropylamide and 4-(2-amino-ethyl)-piperazine-1-carboxylic acid tert-butyl ester and isolated as a yellow solid (80% yield). ES+(m/z) 457 (35Cl) and 459 (37Cl) [M(free base)+H].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07547691B2
Source datasetuspto-grants-2009_06
ORD IDord-54a0a2b717e248feb44bd2c85c249ed5
Source noteuspto-grants-2009_06