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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2113590Generated: October 30, 2026

Tetrahydrofuran → HCID 69185099, compound

https://huagongshe.com/reaction/2113590

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
Reactant4-(3-Chloro-4-fluorophenylamino)-6-fluoro-1,7-naphthyridine-3-carbonitrileHCID 18548953—
ProductHCID 69185099HCID 6918509918.7%

Reaction Conditions

Temperature140 °C

Reaction Steps

Following the procedure described above in Example 51, 4-(3-Chloro-4-fluoro-phenylamino)-6-fluoro-[1,7]naphthyridine-3-carbonitrile (0.10 g, 0.32 mmol) was reacted with (1S, 2R)-(+) norephdrine (0.96 g, 6.32 mmol) in 2 mL of THF. The reaction mixture was heated in a sealed vial in a microwave reactor at 140° C. for 50 min, then heated to 160° C. for 30 min. The crude product was purified by preparative HPLC and lyophilized to give a fluffy, yellow solid (26.4 mg, 18.7% yield): 1H NMR (400 MHz, DMSO-D6) δ ppm 1.03 (d, J=6.32 Hz, 3 H) 3.87-4.02 (m, 1 H) 4.67 (t, J=4.67 Hz, 1 H) 5.46 (d, J=4.29 Hz, 1 H) 6.43 (d, J=9.35 Hz, 1 H) 6.93 (s, 1 H) 7.12 (t, J=7.33 Hz, 1 H) 7.18-7.46 (m, 6 H) 7.48-7.55 (m, 1 H) 8.19 (s, 1 H) 8.75 (s, 1 H) 9.54 (s, 1 H); HRMS (ESI+) calcd for C24H19ClFN5O 448.13349, found (MH+), 448.1334.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07432279B2
Source datasetuspto-grants-2008_10
ORD IDord-df881d0830ca45efa7886f29bced62a5
Source noteuspto-grants-2008_10