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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1186516Generated: October 25, 2026

3-Thiophenemethylamine → HCID 68227195, compound

https://huagongshe.com/reaction/1186516

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-ThiophenemethylamineHCID 2776381—
Reactant3-(2-Methanesulfonyl-pyrimidin-4-yl)-8-(4-methyl-piperazin-1-yl)-imidazo[1,2-a]pyrazineHCID 68226486—
ProductHCID 68227195HCID 6822719553%

Reaction Conditions

Temperature140 °C

Reaction Steps

The mixture of 3-(2-methanesulfonyl-pyrimidin-4-yl)-8-(4-methyl-piperazin-1-yl)-imidazo[1,2-a]pyrazine (from Example 46 supra) (120 mg, 0.32 mmol) and thiophen-3-ylmethanamine (145 mg, 1.28 mmol) was heated at 140° C. with stirring for 2 hours. The oil was purified by chromatography (silica gel, 10 g, 200-300 mesh, eluting with dichloromethane:methanol, 30:1 to 10:1) to afford {4-[8-(4-methyl-piperazin-1-yl)-imidazo[1,2-a]pyrazin-3-yl]-pyrimidin-2-yl}-thiophen-3-ylmethyl-amine (Yield 69 mg, 52.8%). 1H NMR (300 MHz, DMSO-d6): δ 8.41 (s, 1H), 8.35 (d, 1H, J=5.4 Hz), 7.94 (t, 1H, J=5.7 Hz), 7.51-7.34 (m, 3H), 7.20-7.12 (m, 2H), 4.56 (d, 2H, J=5.7 Hz), 4.17 (brs, 4H), 2.52-2.44 (m, 4H), 2.23 (s, 3H). LC-MS: [M+H]+ 407.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08673905B2
Source datasetuspto-grants-2014_03
ORD IDord-5728df290d214b1baa15c9f827dec9a3
Source noteuspto-grants-2014_03