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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1890757Generated: October 31, 2026

Methanesulfonyl chloride → N-(3-(isoquinolin-3-yl)-4-methylphenyl)-6-(methylsulfonyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine

https://huagongshe.com/reaction/1890757

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonyl chlorideHCID 31297—
ReactantDiisopropylethylamineHCID 81531—
ReactantN-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amineHCID 58317905—
SolventTetrahydrofuranHCID 8028—
ProductN-(3-(isoquinolin-3-yl)-4-methylphenyl)-6-(methylsulfonyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amineHCID 57493335—

Reaction Steps

To a solution of N-(3-(isoquinolin-3-yl)-4-methylphenyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine (37 mg, 0.1 mmol) in THF (2 mL) is added DIEA (26 mg, 0.2 mmol) and methylsulfonyl chloride (14 mg, 0.12 mmol) subsequently. The reaction mixture is stirred overnight. After removing solvent by rotary evaporation, the residue is purified by HPLC to afford N-(3-(isoquinolin-3-yl)-4-methylphenyl)-6-(methylsulfonyl)-5,6,7,8-tetrahydro-2,6-naphthyridin-1-amine as a white solid. MS m/z 445.2 (M+1); 1H NMR 400 MHz (DMSO-d6) δ 9.34 (s, 1H), 8.11 (d, 1H, J=8.0 Hz), 7.97 (d, 1H, J=7.6 Hz), 7.88-7.85 (m, 3H), 7.76-7.71 (m, 2H), 7.66-7.63 (m, 2H), 7.16 (d, 1H, J=8.4 Hz), 6.57 (d, 1H, J=5.2 Hz), 4.24 (s, 2H), 3.45 (t, 2H, J=6.0 Hz), 2.91 (s, 3H), 2.75 (t, 2H, J=6.0 Hz), 2.26 (s, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08507491B2
Source datasetuspto-grants-2013_08
ORD IDord-9dad12e7c4b64c8e88a77c0e037da583
Source noteuspto-grants-2013_08