2504-55-4Relevant articles and documents
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Reist,Baker
, p. 1083 (1958)
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Synthesis of non-hydrolyzable substrate analogs for Asp-tRNAAsn/Glu-tRNAGln amidotransferase
Klinchan, Chayada,Hsu, Yu-Ling,Lo, Lee-Chiang,Pluempanupat, Wanchai,Chuawong, Pitak
, p. 6204 - 6207 (2014/12/10)
Non-hydrolyzable substrate analogs for tRNA-dependent amidotransferase, 2′- or 3′-aspartyl or -glutamyl adenosine, were synthesized from adenosine without protection of the adenine base. The hydroxyl groups of adenosine were selectively protected, followed by a series of oxidation/reductions to alter the stereochemistry. DFT calculations revealed the driving forces for the ketone hydrate formation at C-2′, but not the C-3′ carbon during the oxidation step. Subsequently, triflation and azide replacement yielded azidoadenosines, which were coupled to protected amino acids after deprotection and reduction. After global deprotection, the target substrate analogs were obtained in 2-14% overall yields from adenosine.
An efficient synthesis of 3′-amino-3′-deoxyguanosine from guanosine
Zhang, Lei,Cui, Zhiyong,Zhang, Biliang
, p. 703 - 710 (2007/10/03)
3′-Amino-3′-deoxyguanosine was synthesized from guanosine in eight steps and 58% overall yield. The 2′,3′-diol of 5′-O-[(tert-butyl)diphenylsilyl]-2-N-[(dimethylamino) methylidene]guanosine was reacted with α-acetoxyisobutyryl bromide and treated with 0.5N NH3 in MeOH to yield 9-[2′-O-acetyl-3′-bromo-5′-O-[(tertbutyl) diphenylsilyl]-3′-deoxy-β-D-xylofuranosyl]-2-N- [(dimethylamino)methylidene]guanine, which was reacted with benzyl isocyanate, NaH, and then 3.0N NaOH, and finally with Pd/C (10%) and HCO2NH4 in EtOH/AcOH to afford 3′-amino-3′-deoxyguanosine.