A compound having the formula: ##STR1##...http://www.google.com/patents/US6239272?utm_source=gb-gplus-sharePatent US6239272 - 2'-O-alkylthioalkyl and 2'-c-alkylthioalkyl-containing nucleic acids
2'-O-alkylthioalkyl and 2'-c-alkylthioalkyl-containing nucleic acids
