PNA synthesis using a base-labile amino protecting group
    7.
    发明授权
    PNA synthesis using a base-labile amino protecting group 失效
    使用碱不稳定氨基保护基的PNA合成

    公开(公告)号:US6121418A

    公开(公告)日:2000-09-19

    申请号:US967197

    申请日:1997-10-29

    摘要: PNA synthesis using a base-labile amino protecting group Processes are described for preparing PNA oligomers, ##STR1## in which R.sup.0 is hydrogen, alkanoyl, alkoxycarbonyl, cycloalkanoyl, aroyl, heteroaroyl, or a group which favors the intracellular uptake of the oligomer, A and Q are amino acid residues, k and 1 are 0 to 20, n is 1-50, B is a nucleotide base which is customary in nucleotide chemistry, and Q.sup.0 is OH, NH.sub.2, or alkylamino which can be substituted by OH or NH.sub.2. In these processes, the amino acid residues and the structural components ##STR2## in which PG is a base-labile amino protecting group and B' is a nucleotide base which is protected on its exocyclic amino function, are coupled step-wise, in accordance with the solid-phase method, onto a polymeric support which is provided with an anchor group, and, after the construction is complete, the target compounds are cleaved from the polymeric support using a cleaving reagent. Intermediates of the PNA oligomers are also described, as are processes for their preparation.

    摘要翻译: 描述了使用碱不稳定氨基保护基的PNA合成制备PNA寡聚体的方法,其中R 0是氢,烷酰基,烷氧基羰基,环烷酰基,芳酰基,杂芳酰基或有利于寡聚体的细胞内摄取的基团A和Q是 氨基酸残基k和1为0至20,n为1-50,B为核苷酸化学中常见的核苷酸碱基,Q0为OH,NH2或可被OH或NH2取代的烷基氨基。 在这些方法中,PG是碱不稳定氨基保护基团的氨基酸残基和结构组分,B'是其外环氨基功能受保护的核苷酸碱基,按照固体 在具有锚定基团的聚合物载体上,并且在构建完成后,使用裂解试剂从聚合物载体上切割目标化合物。 还描述了PNA低聚物的中间体,以及它们的制备方法。