申请人:Nanogen Recognomics GmbH
公开号:US06613894B1
公开(公告)日:2003-09-02
The invention relates to a process for the preparation of a pyranosyl nucleic acid of the formula (I) or of the formula (II)
The process for the preparation of the pyranosyl nucleic acid comprises (a) bonding the nucleoside to a solid support, (b) deprotecting the 3′,4′-protected nucleoside, (c) reacting the reaction product from step (b) with a 3′,4′-protected pyranosyl nuceloside phosphoramidite, repeating steps (b) and (c) one or more times to produce the desired length of nucleic acid, and coupling a biomolecule to the product of step (d). In a further step, the nucleic acid can be released from the solid support. In one embodiment, the biomolecule may be a DNA or RNA, where furanosyl nucleoside phosphoramidites are added to the pyranosyl nucleic acid.
本发明涉及一种制备式(I)或式(II)吡喃糖核酸的方法。该制备方法包括(a)将核苷酸键合到固体支持物上,(b)去保护3',4'-保护的核苷酸,(c)将步骤(b)的反应产物与3',4'-保护的吡喃糖核苷酸磷酰胺酯反应,重复步骤(b)和(c)一次或多次以产生所需长度的核酸,并将生物分子耦合到步骤(d)的产物中。在进一步的步骤中,核酸可以从固体支持物上释放。在一种实施例中,生物分子可以是DNA或RNA,其中将吡喃糖核苷酸磷酸二酯添加到吡喃糖核酸中。