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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1713125Generated: November 3, 2026

Pyrrolidine → 6-[2-(4-Cyclobutylpiperazin-1-Yl)-2-Oxoethyl]-2-Pyrrolidin-1-Yl-5,6,7,8-Tetrahydro-1,6-Naphthyridine

https://huagongshe.com/reaction/1713125

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyrrolidineHCID 31268—
Reactant2-Chloro-6-[2-(4-cyclobutylpiperazin-1-yl)-2-oxoethyl]-5,6,7,8-tetrahydro-1,6-naphthyridineHCID 57420574—
Product6-[2-(4-Cyclobutylpiperazin-1-Yl)-2-Oxoethyl]-2-Pyrrolidin-1-Yl-5,6,7,8-Tetrahydro-1,6-NaphthyridineHCID 57420576—

Reaction Conditions

Temperature170 °C

Reaction Steps

A mixture of 2-chloro-6-[2-(4-cyclobutylpiperazin-1-yl)-2-oxoethyl]-5,6,7,8-tetrahydro-1,6-naphthyridine (80 mg, 0.23 mmol) and pyrrolidine (2.5 mL) is heated by microwave (300 w) at 170° C. for 2 hr. Solvent is removed and the residue is partitioned between saturated NaHCO3 solution (10 mL) and DCM (10 mL). The layers are separated and the aqueous layer is extracted with DCM (10 ml). The combined extracts are dried and evaporated. The residue is purified by PTLC to give the title compound as a light yellow oil. MS (M+1): 384.3; 1H NMR (5, CDCl3): 7.07 (d, 1H), 6.16 (d, 1H), 3.62-3.69 (m, 4H), 3.53 (s, 2H), 3.40-3.44 (m, 4H), 3.34 (s, 2H), 2.78-2.90 (m, 4H), 2.61-2.72 (m, 1H), 2.27 (q, 4H), 1.63-2.04 (m, 10H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07795262B2
Source datasetuspto-grants-2010_09
ORD IDord-aa227cd084264a8fa7a485e9a764401f
Source noteuspto-grants-2010_09