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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 550433Generated: October 29, 2026

Piperazin-2-one → 4-{2-[(4-{[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]amino}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)oxy]ethyl}piperazin-2-one

https://huagongshe.com/reaction/550433

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperazin-2-oneHCID 231360—
Reactant3-(2-chloroethoxy)-N-[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]-1H-pyrazolo[3,4-d]pyrimidin-4-amineHCID 11502891—
Product4-{2-[(4-{[3-chloro-4-(pyridin-2-ylmethoxy)phenyl]amino}-1H-pyrazolo[3,4-d]pyrimidin-3-yl)oxy]ethyl}piperazin-2-oneHCID 1154776328%

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 piperazinone to give the title compound in 28% yield; NMR Spectrum: 2.70 (t, 2H), 2.89 (t, 2H), 3.09 (s, 2H), 3.14-3.17 (m, 2H), 4.45 (t, 2H), 5.29 (s, 2H), 7.23 (d, 1H), 7.37 (t, 1H), 7.55-7.58 (m, 2H), 7.73 (br s, 1H), 7.87 (t, 1H), 7.92 (s, 1H), 8.29 (s, 1H), 8.48 (br s, 1H), 8.59 (s, 1H); Mass Spectrum: 495 (MH+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07947676B2
Source datasetuspto-grants-2011_05
ORD IDord-669bb15f1fcc4aee92e53a15f4b0b275
Source noteuspto-grants-2011_05