| 摘要 |
<p>PCT No. PCT/EP95/04976 Sec. 371 Date Aug. 9, 1996 Sec. 102(e) Date Aug. 9, 1996 PCT Filed Dec. 15, 1995 PCT Pub. No. WO96/18634 PCT Pub. Date Jun. 20, 1996The invention relates to nucleoside derivatives having photolabile protective groups of the general formula (I) <IMAGE> in which R1=H, NO2, CN, OCH3, halogen or alkyl or alkoxyalkyl having 1 to 4 C atoms R2=H, OCH3 R3=H, F, Cl, Br, NO2 R4=H, halogen, OCH3, or an alkyl radical having 1 to 4 C atoms R5=H or a usual functional group for preparing oligonucleotides R6=H, OH, halogen or XR8, where X=O or S and R8 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.</p> |
