2-Amino-7-chloro-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide → (+/-)-2-Amino-7-(3,4-dimethoxy-3-methylbut-1-yn-1-yl)-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide

HRID 2042761Notes

Reaction equation

HRID 2042761 reaction equation
[NH2:1][C:2]1[N:3]([CH2:18][CH3:19])[C:4]2[C:9]([C:10](=[O:16])[C:11]=1[C:12]([NH:14][CH3:15])=[O:13])=[CH:8][CH:7]=[C:6](Cl)[N:5]=2.[CH3:20][O:21][C:22]([CH3:28])([CH2:25][O:26][CH3:27])[C:23]#[CH:24]>CN(C=O)C.CCN(CC)CC.[Cu]I.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.C1C=CC(P(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.Cl[Pd]Cl>[NH2:1][C:2]1[N:3]([CH2:18][CH3:19])[C:4]2[C:9]([C:10](=[O:16])[C:11]=1[C:12]([NH:14][CH3:15])=[O:13])=[CH:8][CH:7]=[C:6]([C:24]#[C:23][C:22]([O:21][CH3:20])([CH3:28])[CH2:25][O:26][CH3:27])[N:5]=2

Participants

6

Reactant 2

HCID 866423362-Amino-7-chloro-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamideHCID 86642359(+/-)-3,4-Dimethoxy-3-methylbut-1-yne

Product 1

HCID 25127281(+/-)-2-Amino-7-(3,4-dimethoxy-3-methylbut-1-yn-1-yl)-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide

Reagents, catalysts & solvents 3

HCID 24350Copper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)CatalystHCID 6102075Dichlorobis(triphenylphosphine)palladiumCatalystHCID 22056947triethylamine N,N-dimethylformamideSolvent

Procedure

A suspension of 1.5 g (5.34 mmol) of 2-amino-7-chloro-1-ethyl-N-methyl-4-oxo-1,4-dihydro-1,8-naphthyridine-3-carboxamide in 30 ml of a DMF/Et3N (v/v; 2/1) mixture is placed in an 80 ml microwave tube. Argon is sparged into this suspension for 10 minutes and then 1.37 g of (±)-3,4-dimethoxy-3-methylbut-1-yne (10.69 mmol), 0.101 g of CuI (0.53 mmol) and 0.187 g of bis(triphenylphosphine)palladium(II)dichloride (0.27 mmol) are successively added.

Workup

  1. customis placed in an 80 ml microwave tube
  2. customArgon is sparged into this suspension for 10 minutes

Sources & evidence

ORD record
ord-1bcb9c1008604f409c4b2b22c27d5ad2
Source dataset
uspto-grants-2013_11
Patent number
US08586602B2

Reaction notes

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