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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 550436Generated: October 26, 2026

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

https://huagongshe.com/reaction/550436

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
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-methylpiperazin-1-yl)ethoxy]-1H-pyrazolo[3,4-d]pyrimidin-4-amineHCID 1163464530%

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-methylpiperazine to give the title compound in 30% yield; NMR Spectrum: 2.10 (s, 3H), 2.27 (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), 8.42 (s, 1H), 8.59 (d, 1H); Mass Spectrum: 495 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07947676B2
Source datasetuspto-grants-2011_05
ORD IDord-24babd3d0fa44f98a4441e18b0c73963
Source noteuspto-grants-2011_05