申请人:Pfleiderer; Wolfgang
公开号:US05763599A1
公开(公告)日:1998-06-09
The invention relates to nucleoside derivatives having photolabile protective groups of the general formula (I) ##STR1## in which R.sup.1 .dbd.H, NO.sub.2, CN, OCH.sub.3, halogen or alkyl or alkoxyalkyl having 1 to 4 C atoms R.sup.2 .dbd.H, OCH.sub.3 R.sup.3 .dbd.H, F, Cl, Br, NO.sub.2 R.sup.4 .dbd.H, halogen, OCH.sub.3, or an alkyl radical having 1 to 4 C atoms R.sup.5 .dbd.H or a usual functional group for preparing oligonucleotides R.sup.6 .dbd.H, OH, halogen or XR.sup.8, where X.dbd.O or S and R.sup.8 represents a protective group usual in nucleotide chemistry, B=adenine, cytosine, guanine, thymine, uracil, 2,6-diaminopurin-9-yl, hypoxanthin-9-yl, 5-methylcytosin-1-yl, 5-amino-4-imidazolcarboxamid-1-yl, or 5-amino-4-imidazolcarboxamid-3-yl, where in the case of B=adenine, cytosine or guanine, the primary amino function optionally exhibits a permanent protective group. These derivatives may be used for the light-controlled synthesis of oligonucleotides on a DNA chip.
该发明涉及具有通式(I)的光敏保护基的核苷衍生物##STR1##其中R.sup.1 =H、NO.sub.2、CN、OCH.sub.3、卤素或具有1至4个碳原子的烷基或烷氧基烷基R.sup.2 =H、OCH.sub.3 R.sup.3 =H、F、Cl、Br、NO.sub.2 R.sup.4 =H、卤素、OCH.sub.3或具有1至4个碳原子的烷基基团R.sup.5 =H或用于制备寡核苷酸的常见功能基R.sup.6 =H、OH、卤素或XR.sup.8,其中X=O或S,R.sup.8代表核苷酸化学中常见的保护基,B=腺嘌呤、胞嘧啶、鸟嘌呤、胸腺嘧啶、尿嘧啶、2,6-二氨基嘌呤-9-基、次黄嘌呤-9-基、5-甲基胞嘧啶-1-基、5-氨基-4-咪唑甲酰胺-1-基或5-氨基-4-咪唑甲酰胺-3-基,其中在B=腺嘌呤、胞嘧啶或鸟嘌呤的情况下,初级氨基功能可选择具有永久保护基。这些衍生物可用于在DNA芯片上进行光控合成寡核苷酸。