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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2367490Generated: October 30, 2026

Ethanol → (3S,6R)-1-[2-Amino-6-(3-amino-1H-indazol-6-yl)-4-pyrimidinyl]-N-[(1R)-1-cyclohexylethyl]-6-methyl-3-piperidinecarboxamide

https://huagongshe.com/reaction/2367490

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantHydrazineHCID 9321—
ReactantDiisopropylethylamineHCID 81531—
Reactant(3S,6R)-1-[2-Amino-6-(4-cyano-3-fluorophenyl)-4-pyrimidinyl]-N-[(1R)-1-cyclohexylethyl]-6-methyl-3-piperidinecarboxamideHCID 58504811—
SolventMethanolHCID 887—
SolventWaterHCID 962—
Product(3S,6R)-1-[2-Amino-6-(3-amino-1H-indazol-6-yl)-4-pyrimidinyl]-N-[(1R)-1-cyclohexylethyl]-6-methyl-3-piperidinecarboxamideHCID 5850474650.8%

Reaction Conditions

Temperature110 °C

Reaction Steps

Into a microwave tube, (3S,6R)-1-[2-amino-6-(4-cyano-3-fluorophenyl)-4-pyrimidinyl]-N-[(1R)-1-cyclohexylethyl]-6-methyl-3-piperidinecarboxamide (195.6 mg, 0.421 mmol), 5 mL of EtOH, Hunig's base (0.294 mL, 1.684 mmol), and hydrazine anhydrous (0.079 mL, 2.53 mmol) were added, and the yellow suspension mixture was heated overnight at 110° C. in an oil bath. LCMS showed mainly product. CH3OH (5 mL) was added to the solution. The black solid and the yellow solution were carefully separated due to the black solid is heavier than yellow solution. Water (20 mL) was added to the yellow solution, and a solid formed. The solid was filtered, washed by water and dried in vacuum. The solid was recrystallized using CH3CN, and the solid in the solvent was filtered, washed by EtOAc and CH3CN, and dried in vacuum to afford the title compound (102 mg) as a light yellow solid. LC-MS (ES) m/z=477 [M+H]+. 1H NMR (400 MHz, DMSO-d6): δ 0.83-1.36 (m, 12H), 1.55-1.85 (m, 9H), 2.20-2.37 (m, 1H), 2.92 (m, 1H), 3.56-3.71 (m, 1H), 5.38 (s, 2H), 6.07 (s, 2H), 6.57 (s, 1H), 7.54-7.61 (m, 1H), 7.66-7.78 (m, 2H), 7.94 (s, 1H), 11.50 (s, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697685B2
Source datasetuspto-grants-2014_04
ORD IDord-6a5d0ff2ef874331a3195f9ee4d6d403
Source noteuspto-grants-2014_04