| 摘要 |
The present invention provides for compounds of Formulas I-III, and salts thereof, wherein n, m, R, 1, R, R, and 1 t R-) 4 have any of the values defined there for in the specification. The compounds of formula I may be used in the synthesis of oligonucleotides such as compounds of formula II (bearing a 3 '-thiol) or formula III (bearing a 3 '-disulfide). |
