M. Manoharan et al., INTRODUCTION OF A LIPOPHILIC THIOETHER TETHER IN THE MINOR-GROOVE OF NUCLEIC-ACIDS FOR ANTISENSE APPLICATIONS, Bioorganic & medicinal chemistry letters, 3(12), 1993, pp. 2765-2770
A 2'-O-hexylthiotrityl adenosine phosphoramidite has been synthesized
and incorporated into oligonucleotide phosphodiesters and phosphorothi
oates. This tether has potential antisense applications, offers a conv
enient nucleophile for conjugation of various moieties that would resi
de in the minor groove, and may form novel tertiary structures.