Fluorine in medicinal chemistry: β-fluorination of peripheral pyrrolidines attached to acridine ligands affects their interactions with G-quadruplex DNA
作者:Nancy H. Campbell、Daniel L. Smith、Anthony P. Reszka、Stephen Neidle、David O'Hagan
DOI:10.1039/c0ob00886a
日期:——
Comparative X-ray structure studies reveal that CâF bond incorporation into the peripheral pyrrolidine moieties of the G-quadruplex DNA binding ligand BSU6039 leads to a distinct pyrrolidine ring conformation, relative to the non-fluorinated analogue, and with a different binding mode involving reversal of the pyrrolidinium N+âH orientation.
比较X射线结构研究表明,在G-四链体DNA结合配体BSU6039的吡咯烷外围部分中引入C-F键,与非氟化类似物相比,会导致吡咯烷环构象发生明显变化,并产生不同的结合模式,其中涉及吡咯烷N+—H取向的逆转。