申请人:PANAGENE INC
公开号:WO2005009998A1
公开(公告)日:2005-02-03
This application relates to monomers of the general formula (I) for the preparation of PNA (peptide nucleic acid) oligomers and provides method for the synthesis of both predefined sequence PNA oligomers and random sequence PNA oligomers,wherein E is sulfur or oxygen; J is nitrogen or C-R'; R1, R' is independently H, halogen, alkyl, nitro, nitrile, alkoxy, halogenated alkyl, halogenated alkoxy or a functional group having one of following general formulae (A, B) wherein A1, A2, A3, A4, A5, is independently selected from H, halogen such as F, Cl, Br or I, CF3, alkyl, preferably C1,-C4 alkyl, nitro, nitrile, alkoxy, preferably C1,-C4 alkoxy, halogenated (such as F, Cl, Br and I) alkyl, preferably halogenated C1-C4 alkyl, halogenated (such as F, Cl, Br and I) alkoxy, preferably halogenated Ci-C4 alkoxy, phenyl, and halogenated (such as F, Cl, Br and I) phenyl; R2 is H or protected or unprotected side chain of natural or unnatural α-amino acid; and B is a natural or unnatural nucleobase, wherein when said nucleobase has an exocyclic amino function, said function is protected by protecting group which is labile to acids but stable to weak to medium bases in the presence of thiol.
该应用涉及通用式(I)的单体,用于制备
PNA(肽
核酸)寡聚体,并提供了合成预定义序列
PNA寡聚体和随机序列
PNA寡聚体的方法,其中E为
硫或
氧;J为
氮或C-R';R1、R'独立取H、卤素、烷基、硝基、腈基、烷
氧基、卤代烷基、卤代烷
氧基或具有以下通用式(A、B)之一的功能基团,其中A1、A2、A3、A4、A5独立选择自H、
氟、
氯、
溴或
碘等卤素、三
氟甲基、烷基,优选C1-C4烷基、硝基、腈基、烷
氧基,优选C1-C4烷
氧基、卤代(如
氟、
氯、
溴和
碘)烷基,优选卤代C1-C4烷基、卤代(如
氟、
氯、
溴和
碘)烷
氧基,优选卤代C1-C4烷
氧基,
苯基和卤代(如
氟、
氯、
溴和
碘)
苯基;R2为H或
天然或非
天然α-氨基酸的保护或未保护侧链;B为
天然或非
天然核碱基,其中当所述核碱基具有外环
氨基功能时,所述功能由
对酸敏感但在巯基存在的弱到中等碱存在下稳定的保护基团保护。