Synthesis of Novel 6-.ALPHA. and 6-.BETA.-Alkylcarbonylmethyl Substituted Penems.
作者:G. PENTASSUGLIA、G. TARZIA、D. ANDREOTTI、C. BISMARA、R. CARLESSO、D. DONATI、G. GAVIRAGHI、A. PERBONI、A. PEZZOLI、T. ROSSI、B. TAMBURINI、A. URSINI
DOI:10.7164/antibiotics.48.399
日期:——
6-beta Alkylcarbonylmethyl penems were synthesized from 6-alpha-bromo and 6-oxo penicillanates respectively and their in vitro antibacterial activity was studied. The compounds were generally active against Gram-positive but not against Gram-negative strains, the compounds of the 6-beta series being more active. Relatively to imipenem, taken as reference compound, the penems resulted more stable towards
分别从6-α-溴和6-氧代青霉酸酯合成6-α和6-β烷基羰基甲基青霉烯,并研究了它们的体外抗菌活性。这些化合物通常对革兰氏阳性菌株有活性,但对革兰氏阴性菌株没有活性,6-β系列化合物更具活性。相对于亚胺培南(作为参考化合物),该penems在Tris-HCl缓冲液(pH 7.4)中对化学水解更稳定,但对脱氢肽酶-I(DHP-1)更敏感。