作者:J.C. Schulhof、D. Molko、R. Teoule
DOI:10.1016/s0040-4039(00)95646-6
日期:1987.1
New base protecting groups are proposed in place of benzoyl and isobutyryl groups. They are phenoxy acetyl for adenine and guanine and isobutyryl for cytosine. They are cleaved in aqueous ammonia in a shorter time at lower temperature. These easily removable groups are useful in the synthesis of modified oligonucleotides, containing fragile bases.
提出了新的碱保护基团来代替苯甲酰基和异丁酰基。对于腺嘌呤和鸟嘌呤,它们是苯氧基乙酰基;对于胞嘧啶,它们是异丁酰基。它们在较低的温度下在较短的时间内在氨水中裂解。这些易于除去的基团可用于合成含有易碎碱基的修饰寡核苷酸。