کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1371747 | 981853 | 2010 | 5 صفحه PDF | دانلود رایگان |

A series of 24-membered macrocyclic hexaoxazoles containing one or two aminoalkyl substituents was synthesized and evaluated for cytotoxicity and for their ability to selectively stabilize G-quadruplex DNA and RNA. The most cytotoxic analog 4a, with IC50 values of 25 and 130 nM using KB3-1 and RPMI 8402 cells, is efficacious in vivo in athymic nude mice with a human tumor xenograft from the breast cancer cell line MDA-MB-435.
Several monoaminoalkyl derivatives with R′′ being isopropyl and various bis-aminoalkyl substituted hexaoxazoles derivatives were evaluated for cytotoxicity and stabilization of G-quadruplex RNA and DNA. One of the more cytotoxic analogs (where n = 1, R′′ is isopropyl and both R and R′ are methyl substituents) inhibits human tumor growth in the athymic nude mouse xenograft model.Figure optionsDownload as PowerPoint slide
Journal: Bioorganic & Medicinal Chemistry Letters - Volume 20, Issue 10, 15 May 2010, Pages 3150–3154