Diastereoselective synthesis of novel 3-aryloxy/alkoxy-4-benzothiazolylpyrazolyl-<font>β</font>-lactams: Potential synthons for novel aminoacids/nanocopolymers
作者:Jitender Bhalla、Shamsher S. Bari、Bimal K. Banik、Aman Bhalla
DOI:10.1080/00397911.2017.1357186
日期:2017.11.2
ABSTRACT A fast, efficient, and diastereoselective synthesis of novel 3-oxo-4-benzothiazolylpyrazolyl-β-lactams is described. The reaction between 2-aryloxy/alkoxyacetic acid and novel benzothiazolylpyrazole-substituted imines afforded exclusive formation of trans-β-lactams. The scope of the reaction was investigated by varying different groups on substrates (R1, R2, R3, Z). All the novel compounds
摘要描述了新型 3-oxo-4-benzothiazolylpyrazolyl-β-lactams 的快速、有效和非对映选择性合成。2-芳氧基/烷氧基乙酸与新型苯并噻唑基吡唑取代的亚胺之间的反应提供了反式-β-内酰胺的独家形成。通过改变底物(R1、R2、R3、Z)上的不同基团来研究反应范围。在代表性案例中,所有新化合物都使用各种光谱技术进行了表征,例如 FT-IR、1H NMR、13C NMR、元素分析和质谱。迄今为止,文献中还没有关于合成这些类型的β-内酰胺杂环的报道。图形概要