Rapid access with diversity to enantiopure flexible PNA monomers following asymmetric orthogonal strategies
作者:Carlos T. Nieto、Mateo M. Salgado、Sara H. Domínguez、David Díez、Narciso M. Garrido
DOI:10.1016/j.tetasy.2014.06.002
日期:2014.7
Different synthetic procedures are described in the rapid elaboration of flexible PNA monomers based on the 6-amino-8-base-octanoate and 5-amino-7-base-heptanoate scaffolds. Asymmetric Aza-Michael monoaddition is successfully applied to starting materials derived from sebacic/azelaic long-chain diacids and 6-membered oxacyclohexane commercial derivatives. Chain length, orthogonality of the ester functionalities
不同的合成方法以基于6-氨基-8-基辛酸酯和5-氨基-7-基庚支架柔性PNA单体的快速阐述的描述。不对称氮杂-迈克尔单加成被成功地应用到开始从癸二/壬二酸长链二元酸和6-元oxacyclohexane商业衍生物衍生的材料。链长,酯官能团的正交性,并且ž / ë这些素底物的异构通过这个不对称共轭加成,得到高有价值的多官能的中间体。关键特征是PNA单体合成,正交化学选择性转化和Mitsunobu核碱基取代的多样性,这是在最终步骤中引入核碱基的一种特殊方法。