spiro(3-hydroxy-5,5-dimethyl)-1,5’-(2’-substituated[1,3,4]-oxadiazole/thiadiazolo[3,2-c] thiazolines and 3-hydroxy-5,5-dimethyl-spiro[cyclohex-2-ene-thiazolo/thiazino[3,2-b]-s-tetrazine were prepared from previously reported hydrazone, semicarbazone, carbazone, and spiro-s-tetrazine intermediates derived from dimedone precursor. All the newly synthesized heterocycles have been characterized by analytical
                                    摘要 新型螺(3-羟基-5,5-二甲基)-1,5'-(2'-取代[1,3,4]-恶二唑/
噻二唑并[3,2-c]
噻唑啉和3-羟基-5 ,5-二甲基-螺[环己-2-烯-
噻唑并/
噻嗪并[3,2-b]-s-四嗪由先前报道的腙、缩
氨基
脲、卡巴腙和衍生自
二甲酮前体的螺-s-四嗪中间体制备。所有新合成的
杂环化合物均已通过分析和光谱(1H NMR和hC NMR)数据进行表征,并筛选了它们对革兰氏阴性菌大肠杆菌和革兰氏阳性菌
金黄色葡萄球菌的体外抗菌活性。一些化合物对某些化合物显示出中等到良好的活性。选择的细菌。图形摘要