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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 550445Generated: October 28, 2026

1-Ethylpiperazine → N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-3-[2-(4-ethylpiperazin-1-yl)ethoxy]-1H-pyrazolo[3,4-d]pyrimidin-4-amine

https://huagongshe.com/reaction/550445

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-EthylpiperazineHCID 79196—
Reactant3-(2-chloroethoxy)-N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amineHCID 11502891—
ProductN-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-3-[2-(4-ethylpiperazin-1-yl)ethoxy]-1H-pyrazolo[3,4-d]pyrimidin-4-amineHCID 1152631145%

Reaction Steps

The procedure described in Example 23 was repeated using 3-(2-chloroethoxy)-N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amine and N-ethylpiperazine to give the title compound in 45% yield; NMR Spectrum: 0.95 (t, 3H), 2.25 (q, 2H), 2.32 (br s, 4H), 2.50 (hidden under DMSO, 4H), 2.78 (t, 2H), 4.41 (t, 2H), 5.28 (s, 2H), 7.24 (d, 1H), 7.36 (t, 1H), 7.56 (s, 1H), 7.58 (s, 1H), 7.86-7.91 (m, 2H), 8.29 (s, 1H), 8.48 (br s, 1H), 8.59 (d, 1H); Mass Spectrum: 509 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07947676B2
Source datasetuspto-grants-2011_05
ORD IDord-0e62be49e60a4d9cba2e0c26076b5c72
Source noteuspto-grants-2011_05