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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1260580Generated: October 31, 2026

1-Cyclopentylprop-2-yn-1-ol → (+/-)-2-Amino-7-(3-cyclopentyl-3-hydroxyprop-1-yn-1-yl)-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide

https://huagongshe.com/reaction/1260580

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Cyclopentylprop-2-yn-1-olHCID 21062247—
Reactant2-Amino-7-chloro-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamideHCID 86642336—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystDichlorobis(triphenylphosphine)palladiumHCID 6102075—
Solventtriethylamine N,N-dimethylformamideHCID 22056947—
Product(+/-)-2-Amino-7-(3-cyclopentyl-3-hydroxyprop-1-yn-1-yl)-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamideHCID 25123660—

Reaction Steps

A suspension of 1 g (3.56 mmol) of 2-amino-7-chloro-1-ethyl-N-methyl-4-oxo-1,4-dihydro[1,8]naphthyridine-3-carboxamide in 25 ml of a dimethylformamide/triethylamine mixture (V/V; 2.5/1) is placed in a 10 ml microwave tube. This suspension is sparged with argon for 10 minutes and then 0.931 g (7.5 mmol) of (±)-1-cyclopentylprop-2-yn-1-ol, 0.068 g of CuI (0.36 mmol) and 0.125 g of bis(triphenylphosphine) palladium(II)dichloride (0.18 mmol) are successively added.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08470847B2
Source datasetuspto-grants-2013_06
ORD IDord-bd314e323006460885732bba6c75685f
Source noteuspto-grants-2013_06