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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 228124Generated: October 29, 2026

HOAt → HCID 21060090, compound

https://huagongshe.com/reaction/228124

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHOAtHCID 181649—
ReactantN-Boc-4-chloro-D-phenylalanineHCID 7018791—
ReactantN-(3-dimethylaminopropyl)-N'-ethylcarbodiimide methyliodideHCID 10236463—
Reactant1-(Piperidin-2-yl)piperazineHCID 12947145—
SolventDimethylformamideHCID 6228—
ProductHCID 21060090HCID 21060090—

Reaction Steps

N-{(1R)-1-[(4-Chlorophenyl)methyl]-2-oxo-2-(4-(2-pyridyl)piperazinyl)ethyl}(tert-butoxy)carboxamide was prepared according to the procedure for Preparation XIX using Boc-p-Cl-D-Phe-OH (550 mg, 1.8 mmol), 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide methiodide (1.1 g, 3.80 mmol), HOAT (260 mg, 1.9 mmol), DMF (15 mL), and 1-(2-piperidyl)piperazine (280 μl, 1.8 mmol) (Aldrich). The crude material was concentrated in vacuo to yield 810 mg. MS (ESI, pos. ion) m/z: 445 (M+H), (ESI, neg. ion) m/z: 443 (M−H). Calc'd for C23H29ClN4O3: 444.95.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07560460B2
Source datasetuspto-grants-2009_07
ORD IDord-92565239d8c54ba88df919efc21f7775
Source noteuspto-grants-2009_07