Facile Synthesis of O6-Alkyl-, O6-Aryl-, and Diaminopurine Nucleosides from 2‘-Deoxyguanosine
摘要:
[GRAPHICS]The 3',5'-bis-O-TBDMS derivative of 2'-deoxyguanosine can be converted to its O-6-alkyl and O-6-aryl ethers as well as to N-6-substituted diaminopurine nucleosides in two simple steps. Also described is a novel, nonaqueous, one-step O-6-desulfonylation method that leads to deprotection of the carbonyl moiety of 2'-deoxyguanosine.
Synthesis of 6-substituted 2′-deoxyguanosine derivatives using trifluoroacetic anhydride in pyridine
作者:Fathi Reza、Goswami Bhaswati、Kung Pei-Pei、Barbara L. Gaffney、Roger A. Jones
DOI:10.1016/s0040-4039(00)94543-x
日期:1990.1
Trifluoroaceticanhydride at 0° C reacts with a pyridine suspension of deoxyguanosine to generate a polar intermediate, presumably the corresponding 6-pyridyl derivative. The reaction is complete in less than 15 minutes, and is not accompanied by degradation. From this intermediate a variety of 6-substituted deoxyguanosine derivatives can be obtained, some in excellent yields.