Nucleic acid related compounds. 64. Synthesis of 2',3'-diazido-2',3'-dideoxyadenosine and 2',3'-diamino-2',3'-dideoxyadenosine from 9-(.beta.-D-arabinofuranosyl)adenine
作者:Y. C. Jack Chen、Fritz Hansske、Kim D. Janda、Morris J. Robins
DOI:10.1021/jo00010a042
日期:1991.5
Treatment of 9-(beta-D-arabinofuranosyl)adenine (1) with triphenylphosphine and diethyl azodicarboxylate gave 9-(2,3-anhydro-beta-D-lyxofuranosyl)adenine (2). Treatment of 2 with lithium azide and protection of the major product gave 9-[3-azido-5-O-(tert-butyldimethylsilyl)-3-deoxy-beta-D-arabinofuranosyl]adenine (4). Trifluoromethanesulfonylation of 4 and treatment of the resulting triflate 5 with lithium azide gave 9-(5-O-TBDMS-2,3-diazido-2,3-dideoxy-beta-D-ribofuranosyl)adenine (6). Deprotection of 6 gave 2',3'-diazido-2',3'-dideoxyadenosine (7), which was hydrogenated to give the secondary diamino nucleoside analogue, 2',3'-diamino-2',3'-dideoxyadenosine (8). Biological rationale for the synthesis of nucleoside analogues 7 and 8 is discussed.