Synthesis and in vitro cytostatic activity of 1,2- and 1,3-diacylglycerophosphates of clofarabine
摘要:
The conjugates of anticancer nucleoside clofarabine [2-chloro-9-(2-deoxy-2-fluoro-6-n-arabinofuranosyl)adenine1 With 1,2- and 1,3-diacylglycerophosphates have been prepared by the phosphoramidite method using a combination of 1,1,3,3-tetraisopropyldisiloxane-1,3-diyl protecting group for the sugar moiety of the nucleoside and 2-cyanoethyl protection for the phosphate fragment. Some of the synthesized conjugates exhibited cytostatic activity against HL-60, A-549, MCF-7, and HeLa tumor cell lines. (C) 2013 Elsevier Ltd. All rights reserved.
AbstractNew conjugates of antiviral nucleoside Ribavirin (=1‐(β‐D‐ribofuranosyl)‐1H‐1,2,4‐triazole‐3‐carboxamide; 1) with 1,2‐ and 1,3‐diacyl glycerophosphates have been synthesized by the phosphoramidite method. A combination of 2′,3′‐phenylboronate protecting group for the sugar moiety of the ribonucleoside 1 and 2‐cyanoethyl protection for the phosphate fragment ensured the preparation of the desired compounds with reasonable yields via a small number of synthetic steps.