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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1867930Generated: October 31, 2026

Water → Ethyl 1-(2,4-dimethoxybenzyl)-7-(2-(s)-hydroxymethyl-pyrrolidin-1-yl)-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylate

https://huagongshe.com/reaction/1867930

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantDiisopropylethylamineHCID 81531—
ReactantL-ProlinolHCID 640091—
ReactantEthyl 7-chloro-1-(2,4-dimethoxybenzyl)-6-fluoro-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxylateHCID 13937202—
SolventAcetonitrileHCID 6342—
ProductEthyl 1-(2,4-dimethoxybenzyl)-7-(2-(s)-hydroxymethyl-pyrrolidin-1-yl)-4-oxo-1,4-dihydro-[1,8]naphthyridine-3-carboxylateHCID 69029517—

Reaction Steps

A mixture of EXAMPLE 1B (2.96 g), (S)-prolinol (850 μL), and diisopropylethylamine (4 mL) in acetonitrile (70 mL) at 25° C. was stirred for 3 days, treated with water, and extracted with dichloromethane. The extract was washed with 1M hydrochloric acid, water, saturated NaHCO3, and water, and concentrated.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07632946B2
Source datasetuspto-grants-2009_12
ORD IDord-730cb9642d1c4cd0958e6d6f3aefa9d7
Source noteuspto-grants-2009_12