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.
式 (3) 所代表的化合物:
或其对映体,其方法包括
使式 (1) 所代表的化合物发生反应:
或其对映体与
6-羟基己酸在添加剂(如
1-羟基苯并三唑)和冷凝剂存在下在溶剂中混合,然后将所得反应混合物、
水和碱(如碱
金属氢氧化物)混合,生成式(2)代表的化合物:
或其对映体;以及
在偶联活化剂存在下,在溶剂中将式 (2) 所代表的化合物或其对映体与 2-
氰乙基-N,N,N′,N′-四异丙基
磷二脒反应。