Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 397344Generated: October 29, 2026

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

https://huagongshe.com/reaction/397344

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1H-indazol-3-amineHCID 13399—
Reactant4-Chloro-2-(2-chloro-phenyl)-pyrido[3,4-d]pyrimidineHCID 21939210—
Product[2-(2-Chloro-phenyl)-pyrido[3,4-d]pyrimidin-4-yl]-(1H-indazol-3-yl)-amineHCID 21939198—

Reaction Steps

Prepared from 4-Chloro-2-(2-chloro-phenyl)-pyrido[3,4-d]pyrimidine (100 mg, 0.36 mmol) and 1H-indazol-3-ylamine (88 mg, 0.66 mmol) Purification by preparative HPLC afforded the title compound as a yellow, di-TFA salt (72 mg, 33% yield). HPLC-Method A, Rt 3.21 min; 1H NMR (DMSO, 500 MHz): δ12.95 (1H, s), 10.90 (1H, bs), 9.25 (1H, s), 8.75 (1H, m), 8.55 (1H, m), 7.65 (1H, m), 7.55 (1H, m), 7.50-7.30 (5H, m), 7.00(1H, m); MS (m/z), MH+ 373.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06610677B2
Source datasetuspto-grants-2003_08
ORD IDord-5113deaba03d46fa8651fef90c5319ce
Source noteuspto-grants-2003_08