The Drug Ontology

Last uploaded: June 6, 2026
Id http://purl.obolibrary.org/obo/CHEBI_85993
http://purl.obolibrary.org/obo/CHEBI_85993
Preferred Name

palbociclib

Definitions
A member of the class of pyridopyrimidines that is 2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}pyrido[2,3-<em>d</em>]pyrimidin-7-one bearing additional methyl, acetyl and cyclopentyl substituents at positions 5, 6 and 8 respectively. It is used in combination with letrozole for the treatment of metastatic breast cancer.
Synonyms
6-Acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-ylpyridin-2-ylamino)-8H-pyrido(2,3-d)pyrimidin-7-one
UNII-G9ZF61LE7G
PD 0332991
PD 332991
PD-0332991
PD0332991
Type http://www.w3.org/2002/07/owl#Class
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