1073354-05-8Relevant articles and documents
Synthesis and biological evaluation of 4-(piperid-3-yl)amino substituted 6-pyridylquinazolines as potent PI3Kδ inhibitors
Feng, Yifan,Duan, Weiming,Fan, Shu,Zhang, Hao,Zhang, San-Qi,Xin, Minhang
, (2019)
PI3Kδ is an intriguing target for developing anti-cancer agent. In this study, a new series of 4-(piperid-3-yl)amino substituted 6-pyridylquinazoline derivatives were synthesized. After biological evaluation, compounds A5 and A8 were identified as potent PI3Kδ inhibitors, with IC50 values of 1.3 and 0.7 nM, respectively, which are equivalent to or better than idelalisib (IC50 = 1.2 nM). Further PI3K isoforms selectivity evaluation showed that compound A5 afforded excellent PI3Kδ selectivity over PI3Kα, PI3Kβ and PI3Kγ. A8 exhibited superior PI3Kδ/γ selectivity over PI3Kα and PI3Kβ. Moreover, compounds A5 and A8 selectively exhibited anti-proliferation against SU-DHL-6 in vitro with IC50 values of 0.16 and 0.12 μM. Western blot analysis indicated that A8 could attenuate the AKTS473 phosphorylation. Molecular docking study suggested that A8 formed three key H-bonds action with PI3Kδ, which may account for its potent inhibition of PI3Kδ. These findings indicate that 4-(piperid-3-yl)amino substituted 6-pyridylquinazoline derivatives were potent PI3Kδ inhibitors with distinctive PI3K-isoforms and anti-proliferation profiles.
PYRAZOLOPYRIMIDINE DERIVATIVE AND USE THEREOF AS PI3K INHIBITOR
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Paragraph 0082-0083; 0085, (2021/06/03)
The present invention discloses a series of pyrazolopyrimidine derivatives and use thereof in preparing a medicament for treating a disease related to PI3K, and in particular, discloses a derivative compound of formula (I), a tautomer thereof or a pharmaceutically acceptable composition thereof.
QUINAZOLINE DERIVATIVES AS PI3K MODULATORS
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Page/Page column 50, (2013/05/09)
The invention relates to substituted quinazoline derivative of the formula (I), wherein A, X1, X2, X3, X4 and R5 are as defined in the description. Such compounds are suitable for the treatment of a disorder or disease which is mediated by the activity of the PI3K enzymes.