N4-(3-phenylproprionyl)-2'-deoxycytidine derivatives are disclosed having the following formula: ##STR1## wherein R.sup.1 is --CO--CH.sub.2 --CH.sub.2 --C.sub.6 H.sub.5, R.sup.5 is hydrogen, a trityl group or the group --CO--CH.sub.2 --CH.sub.2 --C.sub.6 H.sub.5, R.sup.6 is selected from the group consisting of hydrogen, --CO--CH.sub.2 --CH.sub.2 --C.sub.6 H.sub.5, ##STR2## and R.sup.7 is hydrogen or OH. These derivatives are useful in oligonucleotide synthesis because the 3-phenyl-proprionyl blocking group can be removed rapidly by ammonia.
公开了具有以下式子的N4-(3-苯丙酰基)-2'-去氧
胞苷衍
生物:##STR1## 其中R.sup.1为--CO--CH.sub.2--CH.sub.2--C.sub.6H.sub.5,R.sup.5为氢,三苯甲基基团或--CO--CH.sub.2--CH.sub.2--C.sub.6H.sub.5基团,R.sup.6选自氢,--CO--CH.sub.2--CH.sub.2--C.sub.6H.sub.5,##STR2##和R.sup.7为氢或OH。这些衍
生物在寡核苷酸合成中有用,因为3-苯丙酰基阻断基可以被
氨迅速去除。