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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 223006Generated: October 25, 2026

4-Amino-2,2,6,6-tetramethylpiperidine → 4-(5-amino-2-methylphenyl)-8-(2,6-difluorophenyl)-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]pyrido[2,3-d]pyrimidin-7(8H)-one

https://huagongshe.com/reaction/223006

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Amino-2,2,6,6-tetramethylpiperidineHCID 37524—
Reactant4-(5-amino-2-methylphenyl)-8-(2,6-difluorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-oneHCID 59212680—
Product4-(5-amino-2-methylphenyl)-8-(2,6-difluorophenyl)-2-[(2,2,6,6-tetramethyl-4-piperidinyl)amino]pyrido[2,3-d]pyrimidin-7(8H)-oneHCID 44529219—

Reaction Steps

The title compound was prepared as described in Example 1 d from 4-(5-amino-2-methylphenyl)-8-(2,6-difluorophenyl)-2-(methylsulfonyl)pyrido[2,3-d]pyrimidin-7(8H)-one and 2,2,6,6-tetramethyl-4-piperidinamine: LC-MS m/z 519 (M+H)+, 1.8 min (ret time).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08207176B2
Source datasetuspto-grants-2012_06
ORD IDord-b84aaf61c43c45f0ac2ae417d09acc81
Source noteuspto-grants-2012_06