Design, synthesis, antibacterial and antifungal activity of novel spiro-isoxazolyl bis-[5,5′]thiazolidin-4-ones and spiro-isoxazolyl thiazolidin-4-one-[5,5′]-1,2-4 oxdiazolines
作者:Eligeti Rajanarendar、Enugala Kalyan Rao、Firoz Pasha Shaik、Modugu Nagi Reddy、Manda Srinivas
DOI:10.1080/17415993.2010.492474
日期:2010.8
N-1-\3-methyl-5-[(E)-2-aryl-1-ethenyl]-4-isoxazolyl}-2-chloroacetamide (2) with aryl isothiocyanates yielded 3,3-methyl-5-[(E)-2-aryl-1-ethenyl]-4-isoxazolyl-2-(arylimino)-1,3-thiazolan-4-ones (3). Cyclocondensation of 3 with mercaptoacetic acid furnished novel isoxazolyl-1,6-dithia-4,9-diazaspiro[4.4]nonane-3,8-diones (4a–h). Cycloaddition of 3 with benzonitrile oxides afforded novel isoxazolyl 1-oxa-6-thia-2
新型异恶唑基 1,6-二硫杂-4,9-二氮杂螺[4.4]壬烷-3,8-二酮 (4a-h) 和异恶唑基 1-oxa-6-thia-2,4,9-triazaspiro[4.4] 的合成]non-2-ene-8-ones (5a-h) 类似物进行了描述。N-1-\3-甲基-5-[(E)-2-芳基-1-乙烯基]-4-异恶唑基}-2-氯乙酰胺(2)与异硫氰酸芳基酯反应生成3,3-甲基-5 -[(E)-2-芳基-1-乙烯基]-4-异恶唑基-2-(芳基亚氨基)-1,3-噻唑烷-4-酮(3)。3 与巯基乙酸的环缩合反应得到了新型的异恶唑基-1,6-二硫杂-4,9-二氮杂螺[4.4]壬烷-3,8-二酮(4a-h)。3 与苄腈氧化物环加成得到新型异恶唑基 1-oxa-6-thia-2,4,9-triazaspiro[4.4]non-2-ene-8-ones (5a-h)。化合物 4a-h 和 5a-h 对所有标准菌株都显示出显着的生物活性。