Efficient synthesis of protected 3′-deoxyadenosine and 3′-deoxyguanosine from adenosine and guanosine
作者:Zhiyong Cui、Lei Zhang、Biliang Zhang
DOI:10.1016/s0040-4039(00)02041-4
日期:2001.1
Highly efficient synthesis of protected 3′-deoxyadenosine and 3′-deoxyguanosine from adenosine and guanosine were described. The 2′,3′-diol of protected adenosine and guanosine were reacted with α-acetoxyisobutyryl bromide to yield 9-(2′-O-acetyl-3′-bromo-5′-O-tert-butyldiphenylsilyl-3′-deoxy-β-d-xylofuranosyl)-6-N-benzoyl adenine and 9-(2′-O-acetyl-3′-bromo-5′-O-tert-butyldiphenylsilyl-3′-deoxy-β
描述了由腺苷和鸟苷高效合成保护的3'-脱氧腺苷和3'-脱氧鸟苷。2',3'-二醇保护的腺苷和鸟苷,用α-乙酰氧基异丁酰溴反应,得到9-(2'- ø -乙酰基3'-溴-5'- ø -叔-butyldiphenylsilyl -3'-脱氧-β-d呋喃木糖基)-6- ñ -苯甲酰基腺嘌呤和9-(2'- ø -乙酰基3'-溴-5'- ø -叔-butyldiphenylsilyl -3'-脱氧-β-d呋喃木糖基) -2- ñ - (ñ ',ñ '-dimethylaminomethylene)鸟嘌呤,随后用三-加热ñ-丁基氢化锡在2,2'-偶氮二异丁腈的存在下,以全部收率提供66-73%的受保护的3'-脱氧腺苷和3'-脱氧鸟苷。