申请人:Toagosei Chemical Industry Co., Ltd.
公开号:US04808708A1
公开(公告)日:1989-02-28
Novel phosphorsulfide derivatives of deoxynucleosides or deoxynucleotides are provided, which have the general formula: ##STR1## wherein R.sup.1 is a hydroxy-protecting group; R.sup.2 is a phosphate-protecting group; R.sup.3 is an aryl group; B.sub.1 and B.sub.2 may be the same or different and each are a base residue which may have a protecting group; and n is zero or a positive integer, provided that if n is 2 or larger, the respective R.sup.2 may be the same or different. They are prepared by reacting a deoxynucleoside or deoxynucleotide with a 1,2,4-triazolylphosphine compound and are useful as intermediates for the preparation of oligodeoxy-nucleotides.
提供了一种新的脱氧核苷或脱氧核苷酸的磷酰亚砜衍生物,其具有以下通用公式:##STR1## 其中R.sup.1是羟基保护基团;R.sup.2是磷酸保护基团;R.sup.3是芳香族基团;B.sub.1和B.sub.2可以相同或不同,每一个都是可能带有保护基团的碱基残基;n为零或正整数,如果n为2或更大,则相应的R.sup.2可以相同或不同。它们是通过将脱氧核苷或脱氧核苷酸与1,2,4-三唑基磷酰亚胺化合物反应而制备的,并且作为制备寡脱氧核苷酸的中间体是有用的。