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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 254229Generated: October 30, 2026

Hydrochloric Acid → HCID 57443709, compound

https://huagongshe.com/reaction/254229

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-(5,6-Dichloro-2-methylamino-pyrimidin-4-yl)-piperazine-1-carboxylic acid tert-butyl esterHCID 57443703—
SolventEthyl AcetateHCID 8857—
ProductHCID 57443709HCID 57443709100%

Reaction Steps

2.6 g (7.2 mmol) 4-(5,6-dichloro-2-methylamino-pyrimidin-4-yl)-piperazine-1-carboxylic acid tert-butyl ester was deprotected at 10° C. using 100 ml ethylacetate saturated with gaseous hydrochloric acid. After 4 hours the precipitate was filtered giving the title compound (2.4 g, 100%), melting at 204-209° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07875610B2
Source datasetuspto-grants-2011_01
ORD IDord-29a0c24c7a5c4c0795a894793f2060c6
Source noteuspto-grants-2011_01