Optically active segment for stereocontrolled oligonucleotide synthesis and its manufacturing method, and method for synthesizing sterically controlled oligonucleotide using the same

摘要

An optically active segment for stereocontrolled oligonucleotide synthesis represented by the following formula (I), a method of producing the same, and a sterically controlled oligonucleotide synthesis method using the same.(in the expressionB is a protected / unprotected nucleoside base;R1 is a substituted / unsubstituted aliphatic group;R2R3The DMTR group or - P (R11) (nr12) 2;R11Och2ch2cnSch2ch2cn, etc.;R12 is a substituted / unsubstituted aliphatic or aromatic group;XHAlkylO-alkyl or the like;YHNHR 13Halogen or acylEther systemIs silyl based protecting hydroxyl groupForm an X-Y bond between X andN0 or 4 or less.)1