571189-03-2Relevant academic research and scientific papers
Palbociclib preparation method
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, (2019/04/17)
The invention discloses a palbociclib preparation method, and relates to the field of organic synthesis. The method includes taking a compound I as a starting material; and preforming a five-step reaction to obtain palbociclib. The method has the advantages of simple operation, low requirement on equipment, easily-available raw materials, mild reaction conditions and high yield, so that the methodis suitable for industrial production.
Discovery of a potent and selective inhibitor of cyclin-dependent kinase 4/6
Toogood, Peter L.,Harvey, Patricia J.,Repine, Joseph T.,Sheehan, Derek J.,VanderWel, Scott N.,Zhou, Hairong,Keller, Paul R.,McNamara, Dennis J.,Sherry, Debra,Zhu, Tong,Brodfuehrer, Joanne,Choi, Chung,Barvian, Mark R.,Fry, David W.
, p. 2388 - 2406 (2007/10/03)
A pharmacological approach to inhibition of cyclin-dependent kinases 4 and 6 (Cdk4/6) using highly selective small molecule inhibitors has the potential to provide novel cancer therapies for clinical use. Achieving high levels of selectivity for Cdk4/6, versus other ATP-dependent kinases, presents a significant challenge. The pyrido[2,3-d]pyrimidin-7-one template provides an effective platform for the inhibition of a broad cross-section of kinases, including Cdks. It is now demonstrated that the modification of pyrido[2,3-d]pyrimidin-7-ones to include a 2-aminopyridine side chain at the C2-position provides inhibitors with exquisite selectivity for Cdk4/6 in vitro. This selectivity profile is recapitulated in cells where the most selective inhibitors create a G1 block at concentrations up to 100-fold the IC50 for cell proliferation. On the basis of its selectivity profile and pharmacokinetic profile, compound 43 (PD 0332991) was identified as a drug candidate for the treatment of cancer.
