Isosteric analogs of lenalidomide and pomalidomide: Synthesis and biological activity
2013
Abstract A series of analogs of the immunomodulary drugs lenalidomide ( 1 ) and pomalidomide ( 2 ), in which the amino group is replaced with various isosteres, was prepared and assayed for immunomodulatory activity and activity against cancer cell lines. The 4-methyl and 4-chloro analogs 4 and 15 , respectively, displayed potent inhibition of tumor necrosis factor-α (TNF-α) in LPS-stimulated hPBMC, potent stimulation of IL-2 in a human T cell co-stimulation assay, and anti-proliferative activity against the Namalwa lymphoma cell line. Both of these analogs displayed oral bioavailability in rat.
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