Journal
MOLECULES
Volume 22, Issue 6, Pages -Publisher
MDPI
DOI: 10.3390/molecules22060913
Keywords
multi-target kinase inhibitor; VEGFR-2 inhibitor; PDGFR beta inhibitor angiogenesis; (2-oxoindolin-3-ylidene)methylpyrrole
Funding
- Ministry of Science and Technology, R.O.C. [NSC-104-2320-B-016-004]
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Signaling pathways of VEGFs and PDGFs are crucial in tumor angiogenesis, which is essential in solid tumor progression and metastasis. This study reports our strategy for designing and synthesizing a series of novel 2-pyrrolidone-fused (2-oxoindolin-3-ylidene)methylpyrrole derivatives as potential multi-target tyrosine kinase receptor inhibitors. The target compounds were obtained by condensation of 5-substituted oxindoles with N-substituted 2-pyrrolidone aldehyde 7 in satisfactory yields. Of these, 11 and 12 had the highest potency and, compared to sunitinib, showed: (1) significant increase in anti-proliferation of various cancer cells with a favorable selective index (SI); (2) higher inhibitory potency against both VEGFR-2 and PDGFR beta. The molecular modeling results showed that, in terms of VEGFR-2 binding, the synthesized products had a similar binding mode to sunitinib but with tighter interaction.
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