Process for preparation of enantiomerically pure S-(+)-N, N-dimethyl-a-[2-(naphthalenyloxy)ethyl] benzenemethanamine
申请人:Deva Holding Anonim Sirketi
公开号:EP2749553A1
公开(公告)日:2014-07-02
The present invention relates to improved, efficient process for the preparation of enantiomerically pure S-(+)-N,N-dimethyl-a-[2-(naphthalenyloxy)ethyl] benzenemethanamine and pharmaceutically acid addition salts thereof. The present invention particularly provides a process for preparation of (3S, 4R)-3-hydroxy-1-(4-methoxyphenyl)-4-phenylazetidin-2-one useful as a key intermediate for preparation of (s)-dapoxetine.
Provided are a solid-phase carrier for solid-phase synthesis of nucleic acid having improved amino group reactivity, and an aminated oligonucleotide to which an amino group has been attached. The present invention relates to an aminated oligonucleotide represented by formula (I).
Development of a 3′-amino linker with high conjugation activity and its application to conveniently cross-link blunt ends of a duplex
作者:Keiko Kowata、Naoshi Kojima、Yasuo Komatsu
DOI:10.1016/j.bmc.2016.03.039
日期:2016.5
The 2-aminoethyl carbamate linker (ssH linker) exhibits high activity in modifying the 5'-termini of oligonucleotides; however, the ssH linker is not appropriate for 3'-terminal modification because it undergoes intramolecular trans-acylation under heat-aqueous ammonia conditions. We developed an N-(2-aminoethyl)carbamate linker (revH linker), in which the carbamate is oriented in the reverse direction