TY - RPRT TI - Selective O-phosphitilation with nucleoside phosphoramidite reagents. AU - S M Gryaznov AU - R L Letsinger PY - 1992 DO - 10.1093/nar/20.8.1879 UR - https://pubmed.ncbi.nlm.nih.gov/1579488/ ID - 1579488 ER -