申请人:Hoechst Aktiengesellschaft
公开号:US05225550A1
公开(公告)日:1993-07-06
It is possible, by using symmetrical formaldehyde acetals of the formula ##STR1## in which the substituents R.sup.1 -R.sup.3 have the specified meanings, advantageously to introduce the substituent ##STR2## into nitrogen-containing heterocyclic systems to form acyclic nucleoside analogs.
通过使用式子##STR1##中R.sup.1 -R.sup.3具有指定含义的对称甲醛缩醛,可以优势地将取代基##STR2##引入到含氮杂环系统中,形成非环状核苷类似物。