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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 82352Generated: October 29, 2026

Hydrochloric Acid → 2-(4-chlorophenyl)-3-(isopropylamino)-1-(4-((R)-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)propan-1-one dihydrochloride

https://huagongshe.com/reaction/82352

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanttert-butyl 2-(4-chlorophenyl)-3-(4-((R)-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-3-oxopropyl(isopropyl)carbamateHCID 25178698—
SolventDichloromethaneHCID 6344—
Product2-(4-chlorophenyl)-3-(isopropylamino)-1-(4-((R)-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)propan-1-one dihydrochlorideHCID 2364923999%

Reaction Steps

tert-Butyl 2-(4-chlorophenyl)-3-(4-((R)-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)-3-oxopropyl(isopropyl)carbamate was treated with HCl (4M in dioxane, 2 mL) in DCM (10 mL) for 6 hours to provide 2-(4-chlorophenyl)-3-(isopropylamino)-1-(4-((R)-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)piperazin-1-yl)propan-1-one dihydrochloride (24 mg, 99%). MS (APCI+) [M+H]+442.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846681B2
Source datasetuspto-grants-2014_09
ORD IDord-e54fe0b8fc564dcc8ff3a554134ec733
Source noteuspto-grants-2014_09