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Substance Name: Palbociclib [USAN:INN]
RN: 571190-30-2
UNII: G9ZF61LE7G
InChIKey: AHJRHEGDXFFMBM-UHFFFAOYSA-N

Notes

  • Has antineoplastic activity; specific inhibitor of cyclin-dependent kinases 4 & 6.
  • Specific inhibitor of cyclin-dependent kinases 4 & 6.

    NCI: An orally available cyclin-dependent kinase (CDK) inhibitor with potential antineoplastic activity. Palbociclib selectively inhibits cyclin-dependent kinase 4 (CDK4) and 6 (CDK6), thereby inhibiting retinoblastoma (Rb) protein phosphorylation early in the G1 phase leading to cell cycle arrest. This suppresses DNA replication and decreases tumor cell proliferation. CDK4 and 6 are serine/threonine kinases that are upregulated in many tumor cell types and play a key role in the regulation of cell cycle progression.(NCI Thesaurus)

Molecular Formula

  • C24-H29-N7-O2

Molecular Weight

  • 447.5401
 

Classification Codes

  • Antineoplastic Agents
  • Enzyme Inhibitors
  • Protein Kinase Inhibitors

Names and Synonyms

Name of Substance

  • Palbociclib [USAN:INN]

Synonyms

  • 6-Acetyl-8-cyclopentyl-5-methyl-2-(5-piperazin-1-ylpyridin-2-ylamino)-8H-pyrido(2,3-d)pyrimidin-7-one
  • Ibrance
  • Palbociclib
  • PD 0332991
  • PD 332991
  • PD-0332991
  • PD0332991
  • UNII-G9ZF61LE7G

Systematic Name

  • Pyrido(2,3-d)pyrimidin-7(8H)-one, 6-acetyl-8-cyclopentyl-5-methyl-2-((5-(1-piperazinyl)-2-pyridinyl)amino)-

Registry Numbers

CAS Registry Number

  • 571190-30-2

FDA UNII

  • G9ZF61LE7G

System Generated Number

  • 0571190302

Structure Descriptors

InChI

InChI=1S/C24H29N7O2/c1-15-19-14-27-24(28-20-8-7-18(13-26-20)30-11-9-25-10-12-30)29-22(19)31(17-5-3-4-6-17)23(33)21(15)16(2)32/h7-8,13-14,17,25H,3-6,9-12H2,1-2H3,(H,26,27,28,29)

InChIKey

AHJRHEGDXFFMBM-UHFFFAOYSA-N

Smiles

CC(=O)C1=C(C)c2cnc(Nc3ccc(cn3)N4CCNCC4)nc2N(C5CCCC5)C1=O