Synthesis of a formamidine-protected 5′-amino-2′,5′-dideoxyguanosine phosphoramidite and preparation of 5′-acylamidooligonucleotides
摘要:
A 5'-amino-2',5'-dideoxyguanosine phosphoramidite building block for DNA synthesis was prepared from 2-N-(dibutylformamidino)-2'-deoxyguanosine in four steps and 68% overall yield. Two of the three steps of the conversion from the 5'-alcohol to the monomethoxytritylamine were performed in the same flask. (C) 2003 Elsevier Ltd. All rights reserved.