[EN] METHOD OF PRODUCING PURE AMIDITES AND OLIGONUCLEOTIDES<br/>[FR] PROCEDE DE PRODUCTION D'AMIDITES PURES ET D'OLIGONUCLEOTIDES
申请人:ISIS PHARMACEUTICALS INC
公开号:WO2004113553A2
公开(公告)日:2004-12-29
The present invention relates to oligonucleotide synthesis. In particular, the present invention provides methods for making high quality phosphoramidites and oligonucleotides derived therefrom. In some embodiments, the methods comprise identifiying and measuring one or more signals corresponding to one or more critical or non-critical impurities in an amidite sample, and accepting or rejecting the amidite sample depending upon whether the amount of the critical or non-critical impurity is less than or equal to a predetermined threshold.