Nucleotides. Part XXXIVSynthesis of Modified Oligomeric 2?-5?A Analogues: Potential Antiviral Agents
作者:Piet Herdewijn、Klaus Ruf、Wolfgang Pfleiderer
DOI:10.1002/hlca.19910740104
日期:1991.1.30
right positions. Their condensations with the intermediary dimeric 2′-terminal phosphodiesters 48 and 49 led to the fully protected 2′–5′-trimers 50–58 which were deblocked to form the free 2′–5′-trimers 59–63. Easy elimination of HBr on deprotection did not allow to form the trimeric (3′-bromo-3′-deoxy-β-D-xylofuranosyl)adenine analogue but only 63 carrying an unsaturated sugar moiety instead. The newly
Structure−Activity Relationships of Bisphosphate Nucleotide Derivatives as P2Y<sub>1</sub> Receptor Antagonists and Partial Agonists
作者:Erathodiyil Nandanan、Emidio Camaioni、Soo-Yeon Jang、Yong-Chul Kim、Gloria Cristalli、Piet Herdewijn、John A. Secrist、Kamal N. Tiwari、Arvind Mohanram、T. Kendall Harden、José L. Boyer、Kenneth A. Jacobson
DOI:10.1021/jm980657j
日期:1999.5.1
anhydrohexitol ring modifications have been prepared and resulted in enhanced agonist properties. The 1,5-anhydrohexitol analogue 36 was a pure agonist with an EC50 of 3 microM, i.e., similar in potency to ATP. 5'-Phosphate groups have been modified in the form of triphosphate, methylphosphate, and cyclic3',5'-diphosphate derivatives. The carbocyclic analogue had enhanced agonist efficacy, and the 5'-O-phosphonylmethyl