申请人:SUMITOMO CHEMICAL COMPANY, LIMITED
公开号:US20190100540A1
公开(公告)日:2019-04-04
A compound represented by formula (3):
or an enantiomer thereof can be obtained by comprising: reacting a compound represented by formula (1):
or an enantiomer thereof with 6-hydroxyhexanoic acid in a solvent in the presence of an additive such as 1-hydroxybenzotriazole and a condensing agent, and then mixing the resultant reaction mixture, water, and a base such as alkali metal hydroxide to produce a compound represented by formula (2):
or an enantiomer thereof; and reacting the compound represented by formula (2) or an enantiomer thereof with 2-cyanoethyl-N,N,N′,N′-tetraisopropylphosphorodiamidite in a solvent in the presence of a coupling activator.
通过在溶剂中添加1-羟基苯并三唑和缩合剂的存在,将由式(1)表示的化合物或其对映体与6-羟基己酸反应,然后混合产生的反应混合物、水和碱金属氢氧化物,可以获得由式(2)表示的化合物或其对映体;并且将由式(2)表示的化合物或其对映体与2-氰乙基-N,N,N',N' -四异丙基膦酰胺在溶剂中反应,在偶联活化剂的存在下。