[EN] ENAMINE N-OXIDES: SYNTHESIS AND APPLICATION TO HYPOXIA-RESPONSIVE PRODRUGS AND IMAGING AGENTS<br/>[FR] N-OXYDES D'ÉNAMINE : SYNTHÈSE ET APPLICATION À DES PROMÉDICAMENTS SENSIBLES À L'HYPOXIE ET AGENTS D'IMAGERIE
申请人:[en]DANA-FARBER CANCER INSTITUTE, INC.
公开号:WO2022204344A2
公开(公告)日:2022-09-29
Disclosed are compounds and pharmaceutically acceptable salts and stereoisomers thereof that are suitable for diagnosis and the treatment of diseases and disorders characterized by, associate with or which exhibit tissue hypoxia, such as, for example, solid tumors. Also disclosed are pharmaceutical compositions containing same, and methods of making and using the compounds.
Semisynthetic Derivatives of Fradcarbazole A and Their Cytotoxicity against Acute Myeloid Leukemia Cell Lines
Fourteen derivatives of the marine-derived fradcarbazole A were synthesized from staurosporine. Their structures were identified by NMR and high-resolution electrospray ionization mass spectrometry (HRESIMS). The derivatives were screened in vitro for antiproliferative activity against three human leukemic cell lines (MV4-11, HL-60, K562). All of the derivatives displayed cytotoxicity against the human FLT-3 internal tandem duplication (ITD) mutant acute myeloid leukemia (AML) cell line MV4-11 with IC50 values of 0.32-0.96 mu M. The mechanism of action studies indicated that the most effective 3-chloro-5(2) '-fluorofradcarbazole A (6) induced apoptosis of the MV4-11 cells and arrested the cell cycle at the G(0)/G(1) phase. Furthermore, compound 6 can reduce the expression of FLT-3, CDK2, and c-kit. The results suggest that 3-chloro-5 '''-fluorofradcarbazole A (6) is a potential candidate for developing novel anti-AML agents in the future.