Structure-activity relationships within a family of selectively cytotoxic macrolide natural products.
[figure: see text] We describe a semi-synthetic deglycosylated derivative of apoptolidin that retains considerable activity against the mitochondrial ATPase but has greatly reduced cellular cytotoxicity. We also demonstrate that a related antifungal natural product, cytovaricin, inhibits the same molecular target. Structural comparison of these macrolides provides insights into their conserved features that are presumably important for biological activity and identifies promising avenues at the interface of organic synthesis and biosynthesis for the generation of new selective cytotoxic agents.
Salomon
A R
AR
Departments of Chemistry and Chemical Engineering, Stanford University, Stanford, California 94305, USA.
Zhang
Y
Y
Seto
H
H
Khosla
C
C
D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D000903:Antibiotics, Antineoplastic / Q000494:pharmacology*; D000935:Antifungal Agents / Q000494:pharmacology*; D001419:Bacteria; D001688:Biological Products / Q000494:pharmacology*; D004791:Enzyme Inhibitors / Q000494:pharmacology*; D018942:Macrolides; D015394:Molecular Structure; D009840:Oligomycins / Q000494:pharmacology*; D006180:Proton-Translocating ATPases / Q000037:antagonists & inhibitors* / Q000187:drug effects; D013329:Structure-Activity Relationship; D015003:Yeasts / Q000201:enzymology
D000900:Anti-Bacterial Agents; D000903:Antibiotics, Antineoplastic; D000935:Antifungal Agents; D001688:Biological Products; D004791:Enzyme Inhibitors; D018942:Macrolides; D009840:Oligomycins; C008717:ossamycin; C033385:cytovaricin; D006180:Proton-Translocating ATPases; C114125:apoptolidin