Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Structures of C4'-modified nucleic acids. (A) 4'-methoxy, (B) 4'-(2-methoxyethoxy), (C) 2',4'-difluoro (2',4'-diF) RNA, (D) 2',4'-difluoro (2',4'-diF) ANA, (E) 2',4'-dimethoxy RNA, (F) 2'-methoxy,4'-fluoro RNA, (G) 2'-fluoro,4'-methoxy ANA, (H) 4'-fluoro RNA, (I) 4'-C-aminoalkyl-2'-O-methyl, (J) 4'-C-aminoalkyl-2'-fluoro, (K) 4'-C-guanidinocarbohydrazidomethyl.
