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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1418585Generated: November 2, 2026

Hydrochloric Acid → HCID 86751327, compound

https://huagongshe.com/reaction/1418585

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantEthyl AcetateHCID 8857—
ReactantHCID 136395923HCID 136395923—
Solvent1,4-DioxaneHCID 31275—
ProductHCID 86751327HCID 86751327—

Reaction Conditions

Temperature50 °C

Reaction Steps

Hydrochloric acid (0.22 ml) was added to a stirred mixture of (2R)-1-[3,5-bis(trifluoromethyl)benzoyl]-4-[N-(2-hydroxybenzylidene)-2-aminoethyl]-2-(1H-indol-3-yl-methyl)piperazine (0.80 g), ethyl acetate (12 ml) and methanol (6 ml) at room temperature. The mixture was stirred at 50° C. for 4.5 hours and then concentrated in vacuo to give an oil. The oil was treated with 4N hydrogen chloride in dioxane solution (0.33 ml) to afford (2R)-4-(2-aminoethyl)-1-[3,5-bis(trifluoromethyl)benzoyl]-2-(1H-indol-3-yl-methyl)piperazine dihydrochloride (0.57 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05883098
Source datasetuspto-grants-1999_03
ORD IDord-8639c8106a664f608de1dea7f52e3dba
Source noteuspto-grants-1999_03