O-2′,3′-Ketal-Nucleolipids of the Cytostatic 5-Fluorouridine: Synthesis, Lipophilicity, and Acidic Stability
作者:Edith Malecki、Helmut Rosemeyer
DOI:10.1002/hlca.201000121
日期:——
The synthesis of a series of cyclic and acyclic O‐2′,3′‐ketal derivatives of the cancerostatic 5‐fluorouridine (2a) is described. The novel compounds were characterized by 1H‐ and 13C‐NMR, and UV spectroscopy, as well as by elemental analyses. The lipophilicity values (log P, retention times in RP‐18 HPLC) of the cyclicketals were determined and related to the ring tensions as well as the acid stability