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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1676255Generated: October 26, 2026

1-Ethyl-4-(prop-2-ynyl)piperazine → HCID 67348454, compound

https://huagongshe.com/reaction/1676255

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-Ethyl-4-(prop-2-ynyl)piperazineHCID 21190741—
Reactant3-Fluoro-4-((2-iodothieno[3,2-b]pyridin-7-yl)oxy)anilineHCID 58474950—
ProductHCID 67348454HCID 6734845445%

Reaction Conditions

Temperature50 °C

Reaction Steps

Prepared from 1-ethyl-4-(prop -2-ynyl)piperazine (59 mg, 0.39 mmol) and 3-fluoro-4-(2-iodothieno[3,2-b]pyridin-7-yloxy)benzenamine (Example 6, Step A; 100 mg, 0.26 mmol) according to the procedure described for Example 6, Step B, except the reaction was heated at 50° C. for 7 hours. The crude was purified by preparative TLC [5% MeOH (containing 7N NH3) in CH2Cl2]. The product was obtained as a waxy solid (48 mg, 40%). 1H NMR (400 MHz, CDCl3) δ 8.47 (d, J=6 Hz, 1H), 7.58 (s, 1H), 7.03 (t, J=9 Hz, 1H), 6.53 (m, 2H), 6.47 (m, 1H), 3.86 (br s, 2H), 3.60 (s, 2H), 2.45-2.74 (m, 8H), 2.46 (q, J=7 Hz, 2H), 1.11 (t, J=7 Hz, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08003662B2
Source datasetuspto-grants-2011_08
ORD IDord-ff0f4d7d4a98462096b6207988fbec0d
Source noteuspto-grants-2011_08