申请人:——
公开号:US20020146737A1
公开(公告)日:2002-10-10
The invention relates to nucleoside derivatives with photolabile protecting groups of general formula (I), where R
1
=H, F, Cl, Br, I, NO
2
; R
2
=H, CN, where R
1
and R
2
are not simultaneously H; R
3
=H, 1-4 C alkyl, phenyl; R
4
=H or a conventional functional group for the synthesis of oligonucleotides; R
5
=H, OH, halogen or XR
6
, where X=O or S and R
6
=a conventional nucleotide protecting group; 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, if B=adenine, cytosine or guanine the primary amine functionality, optionally, carries a permanent protecting group. Furthermore, these derivatives may be used for the light-controlled synthesis of oligonucleotides on a DNA chip.
该发明涉及具有一般式(I)的光敏保护基团的核苷类衍生物,其中R1=H、F、Cl、Br、I、NO2;R2=H、CN,其中R1和R2不同时为H;R3=H、1-4 C 烷基、苯基;R4=H或用于寡核苷酸合成的常规功能基团;R5=H、OH、卤素或XR6,其中X=O或S,R6=常规核苷酸保护基团;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,如果B=腺嘌呤、胞嘧啶或鸟嘌呤,那么主要胺官能团可选择携带永久保护基。此外,这些衍生物可以用于在DNA芯片上进行光控合成寡核苷酸。