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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1926305Generated: November 2, 2026

Hydrochloric Acid → 3-(5-Chloro-8-fluoroisoquinolin-3-yl)-5-[1-(1-methylpiperidin-4-yl)-1H-pyrazol-4-yl]-pyridin-2-ylamine trihydrochloride

https://huagongshe.com/reaction/1926305

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiethyl EtherHCID 3283—
ReactantHCID 44160016HCID 44160016—
SolventDichloromethaneHCID 6344—
Product3-(5-Chloro-8-fluoroisoquinolin-3-yl)-5-[1-(1-methylpiperidin-4-yl)-1H-pyrazol-4-yl]-pyridin-2-ylamine trihydrochlorideHCID 67521550—

Reaction Steps

To a solution of 3-(5-Chloro-8-fluoroisoquinolin-3-yl)-5-[1-(1-methylpiperidin-4-yl)-1H-pyrazol-4-yl]-pyridin-2-ylamine (25 mg, 0.057 mmol) in DCM (2.8 mL) was added 1.0 M of HCl in Et2O (2.8 mL, 2.8 mmol), causing a solid to precipitate. The solid was filtered off, washed with DCM and heptane, and dried in vacuo, yielding the title compound as yellow solid. 1H NMR (400 MHz, CD3OD): δ=2.36-2.47 (m, 4H), 3.67-3.76 (m, 2H), 4.19-4.24 (m, 1H), 4.58-4.69 (m, 1H), 4.70 (s, 1H), 7.47-7.54 (m, 1H), 8.00 (dd, J=8.3, 4.8 Hz, 1H), 8.05-8.09 (m, 1H), 8.29 (s, 1H), 8.38 (s, 1H), 8.71 (s, 1H), 8.83 (s, 1H), 9.68 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178668B2
Source datasetuspto-grants-2012_05
ORD IDord-8a43e022e73b4bd28607efa2aab438ac
Source noteuspto-grants-2012_05