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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 552461Generated: October 25, 2026

5-fluoro-1H-indazol-3-amine → [2-(2-Chloro-phenyl)-pyrido[2,3-d]pyrimidin-4-yl]-(5-fluoro-1H-indazol-3-yl)-amine

https://huagongshe.com/reaction/552461

Reaction equation

Participants

RoleNameHCIDCharge
Reactant5-fluoro-1H-indazol-3-amineHCID 4327896—
Reactant4-Chloro-2-(2-chloro-phenyl)-pyrido(2,3-d]pyrimidineHCID 21939244—
Product[2-(2-Chloro-phenyl)-pyrido[2,3-d]pyrimidin-4-yl]-(5-fluoro-1H-indazol-3-yl)-amineHCID 21939157—

Reaction Steps

Prepared from 4-Chloro-2-(2-chloro-phenyl)-pyrido[2,3-d]pyrimidine (100 mg, 0.36 mmol) and 5-Fluoro-1H-indazol-3-ylamine (108 mg, 0.72 mmol). Purification by preparative HPLC afforded the title compound as a yellow, di-TFA salt (45 mg, 22% yield). HPLC-Method A, Rt 3.00 min; 1H NMR (DMSO, 500 MHz): δ 13.0 (1H, s), 10.90 (1H, bs), 9.15-9.05 (2H, m), 7.70 (1H, m), 7.60-7.30 (6H, m), 7.20 (1H, m); MS (m/z), MH+ 391.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07951820B2
Source datasetuspto-grants-2011_05
ORD IDord-6783afbab07a40afaa79353deeb64dd0
Source noteuspto-grants-2011_05