Synthesis and Antiviral Activity of Carbocyclic 5-Substituted Uridines and Cytidines
摘要:
Some carbocyclic uridines and cytidines have been prepared in a palladium-catalyzed reaction between 5-substituted uracils and cytosines and diacetoxymethylcyclopentene, prepared in a Prins reaction. The antiviral activity of the nucleoside analogues have been tested.
5‐iodouracil or 5‐iodouridine and a series of five‐membered heterocycles such as 1H‐pyrrole, furan, 2‐methylfuran, 1‐methyl‐1H‐pyrrole, thiophene, as well as benzene in MeCN/H2O with a Hg lamp, 5‐aryluracils and 5‐aryluridines were synthesized. The reaction proceeded smoothly without the requirement of adding any transition metals or ligands.
Pyrimidinedione, pyrimidinetrione, triazinedione and
申请人:Syntex (U.S.A.) Inc.
公开号:US05859014A1
公开(公告)日:1999-01-12
Compounds of Formula I: ##STR1## where R.sup.5 is a group selected from Formulae (a), (b), (c) and (d): ##STR2## and the pharmaceutically acceptable salts and N-oxides thereof, are .alpha..sub.1 -adrenergic receptor antagonists useful for the treatment of diseases involving directly or indirectly an obstruction of the lower urinary tract, such as benign prostatic hyperplasia.