Synthesis of photolabile o-nitroveratryloxycarbonyl (NVOC) protected peptide nucleic acid monomers
作者:Zheng-Chun Liu、Dong-Sik Shin、Kyu-Teak Lee、Bong-Hyun Jun、Yong-Kweon Kim、Yoon-Sik Lee
DOI:10.1016/j.tet.2005.06.002
日期:2005.8
photolithographic oligonucleotide synthesis conditions and allowing the in situ synthesis of PNA microarrays in an essentially neutral medium, by avoiding the use of the commonly used deprotection reagents such as trifluoroacetic acid or piperidine. Convenient methods were also explored to prepare 1-(carboxymethyl)-4-N-(4-methoxybenzoyl)cytosine and 9-(carboxymethyl)-2-N-(isobutyryl)guanine with good yields.
肽核酸(PNA)单体的化学合成是使用邻硝基veratryryloxymethoxy(NVOC)基团(N-氨基乙基甘氨酸主链)和碱基不稳定的酰基型核碱基保护基团(腺嘌呤和胞嘧啶为异戊基;鸟嘌呤为异丁酰基)的各种组合完成的。 ),因此提供了与光刻寡核苷酸合成条件兼容的光刻固相PNA合成策略,并通过避免使用常用的脱保护试剂(例如三氟乙酸或哌啶)在基本上中性的介质中原位合成PNA微阵列。还探讨了制备1-(羧甲基)-4 - N-(4-甲氧基苯甲酰基)胞嘧啶和9-(羧甲基)-2-胞嘧啶的简便方法N-(异丁酰基)鸟嘌呤,收率高。