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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2228447Generated: October 30, 2026

1-Piperazinecarboxylic acid, ethyl ester → HCID 87950499, compound

https://huagongshe.com/reaction/2228447

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Piperazinecarboxylic acid, ethyl esterHCID 8431—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
ReactantHCID 18469988HCID 18469988—
ProductHCID 87950499HCID 8795049964%

Reaction Steps

Similarly following the procedure described in Example 5, but substituting 3-(4-amino-phenyl)-1-(4-fluorophenyl)propan-1-one with 2,2,2-trifluoro-N-{4-[3-(4-fluorophenyl)-3-oxopropyl]phenyl}acetamide, and 1-ethoxycarbonylpiperazine with 1-tert-butoxycarbonylpiperazine in Example 5a, gave the title compound as a beige colored solid (64%). The product was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06417186B1
Source datasetuspto-grants-2002_07
ORD IDord-0ade96ce05ac475c9c8968eec024831a
Source noteuspto-grants-2002_07