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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2367203Generated: November 1, 2026

Tetrahydrofuran → 6-(2-Amino-4-pyrimidinyl)-4-(methyloxy)-1H-indazol-3-amine

https://huagongshe.com/reaction/2367203

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTetrahydrofuranHCID 8028—
ReactantHydrazine hydrate (1:1)HCID 24654—
Reactant4-(2-Amino-4-pyrimidinyl)-2-fluoro-6-(methyloxy)benzonitrileHCID 58504461—
Product6-(2-Amino-4-pyrimidinyl)-4-(methyloxy)-1H-indazol-3-amineHCID 4621431349%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a slurry of 4-(2-amino-4-pyrimidinyl)-2-fluoro-6-(methyloxy)benzonitrile (0.20 g, 0.82 mmol) in THF (2 mL) was added hydrazine monohydrate (1.3 mL), and the resulting mixture was stirred at 90° C. until the starting material was consumed as judged by LCMS (˜12 hours). The reaction mixture was concentrated to afford the title compound (102 mg, 49%) as a bright yellow solid. LC-MS (ES) m/z=257 [M+H]+. 1H NMR (400 MHz, DMSO-d6): δ 3.94 (s, 3H), 5.06 (s, 2H), 6.65 (s, 2H), 6.97 (s, 1H), 7.16 (d, J=5.3 Hz, 1H), 7.54 (d, J=1.0 Hz, 1H), 8.30 (d, J=5.3 Hz, 1H), 11.67 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697685B2
Source datasetuspto-grants-2014_04
ORD IDord-2142675385534c5595f02d8b6926d28d
Source noteuspto-grants-2014_04