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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 550483Generated: October 31, 2026

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

https://huagongshe.com/reaction/550483

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
Reactant2-[(4-{[3-methoxy-4-(pyridin-2-ylmethoxy)phenyl]amino}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)oxy]ethyl methanesulfonateHCID 11511439—
ProductN-[3-methoxy-4-(pyridin-2-ylmethoxy)phenyl]-3-[2-(4-methylpiperazin-1-yl)ethoxy]-1H-pyrazolo[3,4-d]pyrimidin-4-amineHCID 1165611659%

Reaction Steps

The procedure described in Example 55 was repeated using 2-[(4-{[3-methoxy-4-(pyridin-2-ylmethoxy)phenyl]amino}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)oxy]ethyl methanesulfonate and N-methylpiperazine to give the title compound in 59% yield; NMR Spectrum: 2.10 (s, 3H), 2.52 (hidden by DMSO, 8H), 2.78 (t, 2H), 3.81 (s, 3H), 4.42 (t, 2H), 5.16 (s, 2H), 7.01 (d, 1H), 7.20 (dd, 1H), 7.36 (t+d, 2H), 7.54 (d, 1H), 7.84 (td, 1H), 8.26 (s, 1H), 8.36 (s, 1H), 8.58 (d, 1H); Mass Spectrum: 491 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07947676B2
Source datasetuspto-grants-2011_05
ORD IDord-bfce0714e5674933904f0e729e531f90
Source noteuspto-grants-2011_05