Journal of Organic Chemistry p. 1794 - 1801 (1987)
Update date:2022-07-29
Topics:
Davisson, V. Jo
Davis, Darrell R.
Dixit, Vyas M.
Poulter, C. Dale
Procedures are described for the synthesis of nucleoside 5'-diphosphates, methanediphosphonates, and difluoromethanediphosphonates.The general strategy involves protection of the nucleosides as amidine, 2',3'-methoxymethylidene, and 3'-(tert-butyldimethylsilyl) derivatives prior to tosylation with tosyl chloride and (N,N-dimethylamino)pyridine.Deprotection, followed by displacement of the tosyl moiety with the tris(tetra-n-butylammonium) pyrophosphate, methanediphosphonate, or difluoromethanediphosphonate salts gave the desired products.The ammonium salts of the nucleotides were purified by flash chromatography on cellulose or medium pressure ion-exchange chromatography on DEAE Fractogel.Syntheses are reported for UDP (18), CDP (19), TDP (20), GDP (21), ADP (23), 2',3'-isopropylidene-ADP (22), adenosine 5'-methanediphosphonate (24), adenosine 5'-difluoromethanediphosphonate (25), and deoxyadenosine 5'-methanediphosphonate (27).In addition ATP (26) was prepared by treatment of 5'-O-tosyladenosine with tetrakis(tetra-n-butylammonium) thiophosphate.Yields for the displacement reactions ranged from 43percent to 93percent.
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