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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2367535Generated: October 30, 2026

Ethanol → 4-Fluoro-6-{2-(methylamino)-6-[(3R)-3-methyl-4-morpholinyl]-4-pyrimidinyl}-1H-indazol-3-amine

https://huagongshe.com/reaction/2367535

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydrazineHCID 9321—
ReactantDiisopropylethylamineHCID 81531—
Reactant2,6-Difluoro-4-{2-(methylamino)-6-[(3R)-3-methyl-4-morpholinyl]-4-pyrimidinyl}benzonitrileHCID 58504710—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
Product4-Fluoro-6-{2-(methylamino)-6-[(3R)-3-methyl-4-morpholinyl]-4-pyrimidinyl}-1H-indazol-3-amineHCID 4621512668.6%

Reaction Conditions

Temperature150 °C

Reaction Steps

A 2-mL microwave vial was charged with 2,6-difluoro-4-{2-(methylamino)-6-[(3R)-3-methyl-4-morpholinyl]-4-pyrimidinyl}benzonitrile (75 mg, 0.217 mmol), hydrazine (0.027 mL, 0.869 mmol), Hunig's base (0.152 mL, 0.869 mmol) and ethanol (1 mL). The reaction mixture was heated at 150° C. for 15 minutes in a microwave reactor. The reaction mixture was allowed to cool, then was poured into EtOAc (50 mL) and water (25 mL). The aqueous layer was extracted with two further portion of EtOAc (2×50 mL), and the combined organics dried over Na2SO4. The dried solution was filtered and concentrated, and the resulting residue was purified by RP-HPLC (0-30% CH3CN in H2O, 0.1% TFA) to afford the title compound (53.2 mg) as a yellow solid. LC-MS (ES) m/z=358 [M+H]+. 1H NMR (400 MHz, DMSO-d6): δ 1.19 (d, J=6.6 Hz, 3H), 2.83 (bs, 3H), 3.06-3.20 (m, 1H), 3.40-3.52 (m, 1H), 3.55-3.66 (m, 1H), 3.69-3.78 (m, 1H), 3.88-4.00 (m, 1H), 4.06-4.24 (m, 1H), 4.43-4.62 (m, 1H), 5.27 (bs, 2H), 6.45-6.71 (m, 2H), 7.26-7.49 (m, 1H), 7.76-7.96 (m, 1H), 11.71-12.13 (m, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697685B2
Source datasetuspto-grants-2014_04
ORD IDord-8eb2e9a9bcbe4737acd9d0e648471ade
Source noteuspto-grants-2014_04