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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1818050Generated: November 2, 2026

Hydrochloric Acid → Ls-104

https://huagongshe.com/reaction/1818050

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPiperidineHCID 8082—
Reactant3-(3,4-Dihydroxy-phenyl)-2-propenalHCID 443034—
ReactantN-(cyanoacetyl)benzylamideHCID 178511179—
SolventEthanolHCID 702—
SolventWaterHCID 962—
ProductLs-104HCID 986187168%

Reaction Steps

To 3,4-dihydroxycinnamaldehyde A12 (example 59) (32 mg, 0.2 mmol) and amide A3 (Example 4) (32 mg, 0.2 mmol) in 8 mL of ethanol 40 μl of piperidine was added and the mixture was kept at room temperature for 1 h. 2N HCl and water were added and the precipitated solid was recrystallized from ethanol-water to give 44 mg (68%) of an orange solid. The analytical data were identical to the compound prepared as described in Example 8.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07598419B2
Source datasetuspto-grants-2009_10
ORD IDord-786fe6528f3b4d7cb2f7f1c74206825d
Source noteuspto-grants-2009_10