15262-12-1Relevant articles and documents
Adenosine analogs as inhibitors of tyrosyl-tRNA synthetase: Design, synthesis and antibacterial evaluation
Wei, Wei,Shi, Wei-Kang,Wang, Peng-Fei,Zeng, Xiao-Tong,Li, Pan,Zhang, Ji-Rong,Li, Qian,Tang, Zhi-Ping,Peng, Jia,Wu, Lang-Zhou,Xie, Mei-Qun,Liu, Chan,Li, Xian-Hui,Wang, Ying-Chun,Xiao, Zhu-Ping,Zhu, Hai-Liang
, p. 6602 - 6611 (2015/10/19)
Herein we describe the synthesis and evaluation of a series of adenosine analogs for in vitro antibacterial activity against Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. Out of these compounds, compound c6 has much stronger antibact
High-throughput five minute microwave accelerated glycosylation approach to the synthesis of nucleoside libraries
Bookser, Brett C.,Raffaele, Nicholas B.
, p. 173 - 179 (2007/10/03)
The Vorbrueggen glycosylation reaction was adapted into a one-step 5 min/130 °C microwave assisted reaction. Triethanolamine in acetontrile containing 2% water was determined to be optimal for the neutralization of trimethylsilyl inflate allowing for direct MPLC purification of the reaction mixture. When coupled with a NH3/methanol deprotection reaction, a high-throughput method of nucleoside library synthesis was enabled. The method was demonstrated by examining the ribosylation of 48 nitrogen containing heteroaromatic bases that included 25 purines, four pyrazolopyrimidines, two 8-azapurines, one 2-azapurine, two imidazopyridines, two benzimidazoles, three imidazoles, three 1,2,4-triazoles, two pyrimidines, two 3-deazapyrimidines, one quinazolinedione, and one alloxazine. Of these, 32 yielded single regioisomer products, and six resulted in separable mixtures. Seven examples provided inseparable regioisomer mixtures of -two to three compounds (16 nucleosides), and three examples failed to yield isolable products. For the 45 single isomers isolated, the average two-step overall yield ± SD was 26 ± 16%, and the average purity ± SD was 95 ± 6%. A total of 58 different nucleosides were prepared of which 15 had not previously been accessed directly from glycosylation/deprotection of a readily available base.
Studies on Nucleosides and Nucleotides. VIII. Preparation and Reactions of Triphenylphosphoranediylnucleosides
Kimura, Junji,Yagi, Kentaro,Suzuki, Hideyuki,Mitsunobu, Oyo
, p. 3670 - 3677 (2007/10/02)
The reaction of uridine, N4-benzoylcitidine, guanosine, and N6-p-toluoyladenosine with diethyl azodicarboxylate and triphenylphosphine resulted in the formation of the corresponding 2',3'-O-(triphenylphosphoranediyl)cyclonucleosides.On the other hand, adenosine afforded, under similar conditions, 3',5'-O-(triphenylphosphoranediyl)adenosine (19).The difference can be explained in terms of the acidity of base moieties of the nucleosides.The reaction of 2',3'-O-(triphenylphosphoranediyl)-O2,5'-cyclouridine, N4-benzoyl-2',3'-O-(triphenylphosphoranediyl)-O2,5'-cyclocytidine, 2',3'-O-(triphenylphosphoranediyl)-N3,5'-cycloguanosine, or N6-p-toluoyl-2',3'-O-(triphenylphosphoranediyl)-N3,5'-cycloadenosine with nucleophiles and with electrophiles addorded the corresponding nucleoside derivatives with free 2'- and 3'-hydroxyl groups.Thus the 2',3'-O-triphenylphosphoranediyl group serves as a protecting group which is readily removed during work-up of the reaction products. 19 reacted with phenyl isocyanate to give 5'-O-phenylcarbamoyladenosine and N6,5'-O-bis(phenylcarbamoyl)adenosine.The reaction of 19 with diphenylketene also afforded acyladenosines with free 2'- and 3'-hydroxyl groups.These results suggested that 3',5'-O-triphenylphosphoranediyl group activates the 5'-carbon atom of adenosine.
