Synthesis and Antibacterial Activity of 2-(Isoxazolidinio-5-yl)carbapenem Derivatives.
作者:KOICHI NISHI、MITSURU IMUTA、YASUO KIMURA、HIDEAKI MIWA
DOI:10.7164/antibiotics.48.1481
日期:——
that the antibacterial activity of 1 beta-methylcarbapenem derivatives was superior to that of the corresponding 1H-carbapenem derivatives, and between the 2-(isoxazolidin-5-yl)-1 beta-methylcarbapenems the antibacterial activity of the 5'R-isomer was slightly better than that of the 5' R-isomer slightly better than that of the 5' S-isomer.
描述了在C-2位具有异恶唑烷环的标题化合物的合成和抗菌活性。这些衍生物是通过硝酮与2-乙烯基碳青霉烯的1,3-偶极环加成反应合成的。该1,3-偶极环加成反应区域选择性地进行,得到2(-异恶唑烷丁-5-基)卡宾烯的非对映异构体。可以确定的是1β-甲基卡巴培南衍生物的抗菌活性优于相应的1H-卡巴培南衍生物的抗菌活性,在2-(异恶唑烷丁-5-基)-1β-甲基卡巴培南之间的5'R抗菌活性-异构体比5'R-异构体略好于5'S-异构体。