Nucleotides. Part LXXIII
作者:Ursula Münch、Wolfgang Pfleiderer
DOI:10.1002/hlca.200390206
日期:2003.7
(2-cyano-1-phenylethoxy)carbonyl (2c1peoc) group was developed as a new base-labile protecting group for the 5′-OH function in solid-phase synthesis of oligoribonucleotides via the phosphoramidite approach. The half-lives of its β-elimination process by 0.1M DBU (1,8-diazabicyclo[5.4.0]undec-7-ene) were determined to be 7–14 s by HPLC investigations. The 2′-OH function was protected with the acid-labile
(2-氰基-1-苯基乙氧基)羰基(2c1peoc)基团被开发为通过亚磷酰胺固相合成寡核糖核苷酸的5'-OH功能的新的碱不稳定保护基。通过HPLC研究确定其通过0.1M DBU(1,8-二氮杂双环[5.4.0] undec-7-ene)进行的β消除过程的半衰期为7-14 s。酸不稳定的四氢-4-甲氧基-2 H可保护2'-OH功能-吡喃-4-基(thmp)基团,而2-(4-硝基苯基)乙基(npe)和2-(4-硝基苯基)乙氧羰基(npeoc)基团用于保护碱基和磷酸盐部分。描述了单体构件的合成,亚磷酰胺和核苷官能化的载体,以及通过这种方法的寡核糖核苷酸的积累。