7-Deazaadenosine: Oligoribonucleotide building block synthesis and autocatalytic hydrolysis of base-modified hammerhead ribozymes
作者:Frank Seela、Karin Mersmann、Jane A. Grasby、Michael J. Gait
DOI:10.1002/hlca.19930760502
日期:1993.8.11
( = tubercidin; c7A; 1) building block for solid-phaseoligoribonucleotidesynthesis was prepared. The amino group of 1 was protected with the (dimethylamino)methylidene residue (3), and the monomethoxytrityl group was introduced at OHC(5′) (4). Protection of OHC(2′) was carried out by silylation, showing that use of the (i-Pr)3Si group resulted in high 2′-O-selectivity (5b, 80%). Reaction of 5b with