Synthesis and Biological Activity of the Penem Antibiotic MEN 10700 and Its Orally Absorbed Ester MEN 11505.
作者:FEDERICO MARIA ARCAMONE、MARIA AURAMURA、ENZO PERROTTA、ATTILIO CREA、STEFANO MANZINI、DAVIDE POMA、ALDO SALIMBENI、ANTONIO TRIOLO、CARLO ALBERTO MAGGI
DOI:10.7164/antibiotics.53.1086
日期:——
The synthesis and biological properties of the new penem antibiotic MEN 10700 (6) and of its selected oral prodrug MEN 11505 (8f) are described. MEN 10700 showed a broad spectrum of activity, with high potency both on Gram-positive and Gram-negative strains. It also exhibited good antibacterial activity toward anaerobes and on strains selected for their resistance to other antibacterial agents (cefotaxime- or ceftazidime-resistant Gram-negative strains, ciprofloxacin-resistant E. coli, extended spectrum β-lactamase producing and cephalosporinase inducible enterobacteria). MEN 10700 showed a very high stability to enzymatic degradation by renal dehydropeptidase DHP-I. After oral administration in rats of the pivaloyloxymethyl ester prodrug MEN 11505, the relative bioavailability of MEN 10700 was calculated as F=43%.
本文介绍了新型青霉烯抗生素 MEN 10700(6)及其精选口服原药 MEN 11505(8f)的合成和生物特性。MEN 10700 具有广谱活性,对革兰氏阳性和革兰氏阴性菌株都有很高的效力。它还对厌氧菌和对其他抗菌剂耐药的菌株(耐头孢他啶或头孢噻肟的革兰氏阴性菌、耐环丙沙星的大肠杆菌、产生广谱β-内酰胺酶的肠杆菌和头孢菌素酶诱导型肠杆菌)具有良好的抗菌活性。MEN 10700 对肾脱水肽酶 DHP-I 的酶降解具有极高的稳定性。大鼠口服新戊酰氧基甲酯原药 MEN 11505 后,计算得出 MEN 10700 的相对生物利用度为 F=43%。