LQQ

6-ACETYL-8-CYCLOPENTYL-5-METHYL-2-[(5-PIPERAZIN-1-YLPYRIDIN-2-YL)AMINO]PYRIDO[2,3-D]PYRIMIDIN-7(8H)-ONE

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is present as a standalone ligand in 3 entries

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Chemical Component Summary
Name	6-ACETYL-8-CYCLOPENTYL-5-METHYL-2-[(5-PIPERAZIN-1-YLPYRIDIN-2-YL)AMINO]PYRIDO[2,3-D]PYRIMIDIN-7(8H)-ONE
Synonyms	Palbociclib
Identifiers	8-cyclopentyl-6-ethanoyl-5-methyl-2-[(5-piperazin-1-ylpyridin-2-yl)amino]pyrido[6,5-d]pyrimidin-7-one
Formula	C₂₄ H₂₉ N₇ O₂
Molecular Weight	447.533
Type	NON-POLYMER
Isomeric SMILES	CC1=C(C(=O)N(c2c1cnc(n2)Nc3ccc(cn3)N4CCNCC4)C5CCCC5)C(=O)C
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

Chemical Details
Formal Charge	0
Atom Count	62
Chiral Atom Count	0
Bond Count	66
Aromatic Bond Count	17

Drug Info: DrugBank

DrugBank ID	DB09073
Name	Palbociclib
Groups	approved investigational
Description	Palbociclib is a piperazine pyridopyrimidine[A176792] that acts in the cell cycle machinery. It is a second generation cyclin-dependent kinase inhibitor[A176798] selected from a group of pyridopyrimidine compounds due to its favorable physical and pharmaceutical properties.[A176810] Palbociclib was developed by Pfizer Inc after the discovery that identified the cyclin-dependent kinases as key regulators of cell growth.[L5867] It was originally FDA approved on March 2015 for the treatment of HR-positive, HER2-negative advanced or metastatic breast cancer and its indications were updated in April 2019 to include male patients based on findings from postmarketing reports and electronic health records demonstrating safety and clinical efficacy.[L4894]
Synonyms	6-acetyl-8-cyclopentyl-5-methyl-2-{[5-(piperazin-1-yl)pyridin-2-yl]amino}pyrido[2,3-d]pyrimidin-7(8H)-one Palbociclib isethionate Palbociclib
Brand Names	Ibrance
Indication	Palbociclib is indicated in combination with [letrozole] as initial endocrine-based therapy for the treatment of human epidermal growth factor receptor type 2 (HER2)-negative and hormone receptor(HR)-positive tumors in adult patients with advanced/metastatic breast cancer. It is as well approved in combination with [fulvestrant] in patients with disease progression with prior endocrine therapy.[A176783] In the official labeling, the use of palbociclib should be accompanied with either an aromatase inhibition, no restricted to letrozole, as initial endocrine-based therapy in postmenopausal women or in man.[L48076] The breast cancer starts as a group of cancer cells that grow into and destroy the nearby breast tissue. This growth can spread into other parts of the body which is called metastasis. According to the location of the cancer cells, it can be categorized in ductal carcinoma and lobular carcinoma. However, other types of breast cancer include inflammatory breast cancer, Paget disease of the breast, triple negative breast cancer non-Hodgkin lymphoma and soft tissue sarcoma.[L5870] In males, breast cancer is usually treated as the cases of postmenopausal women and almost all the cases are ductal carcinoma.[L5873]
Categories	Antineoplastic Agents Antineoplastic and Immunomodulating Agents BCRP/ABCG2 Inhibitors BCRP/ABCG2 Substrates Cyclin-dependent kinase (CDK) inhibitors Cyclin-Dependent Kinases, antagonists & inhibitors Cytochrome P-450 CYP3A Inhibitors Cytochrome P-450 CYP3A Substrates Cytochrome P-450 CYP3A4 Inhibitors Cytochrome P-450 CYP3A4 Inhibitors (weak) Cytochrome P-450 CYP3A4 Substrates Cytochrome P-450 CYP3A4 Substrates with a Narrow Therapeutic Index Cytochrome P-450 Enzyme Inhibitors Cytochrome P-450 Substrates Enzyme Inhibitors Immunosuppressive Agents Kinase Inhibitor Myelosuppressive Agents Narrow Therapeutic Index Drugs OCT1 inhibitors P-glycoprotein inhibitors P-glycoprotein substrates P-glycoprotein substrates with a Narrow Therapeutic Index Protein Kinase Inhibitors
ATC-Code	L01EF01
CAS number	571190-30-2

Drug Targets

Name	Target Sequence	Pharmacological Action	Actions
Cyclin-dependent kinase 4	MATSRYEPVAEIGVGAYGTVYKARDPHSGHFVALKSVRVPNGGGGGGGLP...	unknown	inhibitor
Cyclin-dependent kinase 6	MEKDGLCRADQQYECVAEIGEGAYGKVFKARDLKNGGRFVALKRVRVQTG...	unknown	inhibitor
Cytochrome P450 3A4	MALIPDLAMETWLLLAVSLVLLYLYGTHSHGLFKKLGIPGPTPLPFLGNI...	unknown	substrate,inhibitor
Bile salt sulfotransferase	MSDDFLWFEGIAFPTMGFRSETLRKVRDEFVIRDEDVIILTYPKSGTNWL...	unknown	substrate
Serum albumin	MKWVTFISLLFLFSSAYSRGVFRRDAHKSEVAHRFKDLGEENFKALVLIA...	unknown	binder
P-glycoprotein 1	MDLEGDRNGGAKKKNFFKLNNKSEKDKKEKKPTVSVFSMFRYSNWLDKLY...	unknown	substrate,inhibitor
ATP-binding cassette sub-family G member 2	MSSSNVEVFIPVSQGNTNGFPATASNDLKAFTEGAVLSFHNICYRVKLKS...	unknown	substrate,inhibitor
Solute carrier family 22 member 1	MPTVDDILEQVGESGWFQKQAFLILCLLSAAFAPICVGIVFLGFTPDHHC...	unknown	inhibitor
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Drug Info/Drug Targets: DrugBank 3.0: a comprehensive resource for 'omics' research on drugs. Knox C, Law V, Jewison T, Liu P, Ly S, Frolkis A, Pon A, Banco K, Mak C, Neveu V, Djoumbou Y, Eisner R, Guo AC, Wishart DS. Nucleic Acids Res. 2011 Jan; 39 (Database issue):D1035-41. | PMID:21059682