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
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | 1-Ethyl-4-(prop-2-ynyl)piperazine | HCID 21190741 | — |
| Reactant | 3-Fluoro-4-((2-iodothieno[3,2-b]pyridin-7-yl)oxy)aniline | HCID 58474950 | — |
| Product | HCID 67348454 | HCID 67348454 | 45% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08003662B2 |
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| Source dataset | uspto-grants-2011_08 |
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| ORD ID | ord-ff0f4d7d4a98462096b6207988fbec0d |
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| Source note | uspto-grants-2011_08 |
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