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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1398478Generated: October 31, 2026

Piperidine → 4-[1-(2-aminopyrimidin-4-yl)-1H-indazol-6-yl]-2-(1,3-thiazol-2-yl)but-3-yn-2-ol

https://huagongshe.com/reaction/1398478

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant2-(Thiazol-2-yl)but-3-yn-2-olHCID 58221551—
Reactant4-(6-iodo-1H-indazol-1-yl)pyrimidin-2-amineHCID 68181732—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
CatalystHCID 178418397HCID 178418397—
Product4-[1-(2-aminopyrimidin-4-yl)-1H-indazol-6-yl]-2-(1,3-thiazol-2-yl)but-3-yn-2-olHCID 60163904—

Reaction Steps

To a mixture of 4-(6-iodo-1H-indazol-1-yl)pyrimidin-2-amine (1-a1) (150 mg, 0.285 mmol) and piperidine (1 mL) was added tetrakis(triphenylphosphine)palladium (49.3 mg, 0.043 mmol), copper(I) iodide (8.1 mg, 0.043 mmol) and 2-(1,3-thiazol-2-yl)but-3-yn-2-ol (I-1) (131 mg, 0.854 mmol). The reaction was purged with N2 and stirred at RT for 30 min. The reaction mixture was concentrated in vacuo and the residue purified by reverse phase preparative HPLC to afford the title compound: 1H NMR (500 MHz, DMSO) δ 1.95 (3H, s), 7.04 (2H, br. s.), 7.08-7.13 (2H, m), 7.35 (1H, dd, J=8.20, 1.26 Hz), 7.70 (1H, d, J=3.15 Hz), 7.79 (1H, d, J=3.15 Hz), 7.89 (1H, d, J=8.51 Hz), 8.30 (1H, d, J=5.67 Hz), 8.50 (1H, s), 8.91 (1H, s). LC-MS: m/z=+363.4 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08901313B2
Source datasetuspto-grants-2014_12
ORD IDord-ee9ef3c91fbb407f810524f0c6646fc2
Source noteuspto-grants-2014_12