Synthesis and Biological Evaluation of New Oral Carbapenems with 1-Methyl-5-oxopyrrolidin-3-ylthio Moiety.
作者:OSAMU KANNO、MASAO MIYAUCHI、TAKAHIRO SHIBAYAMA、SATOSHI OHYA、ISAO KAWAMOTO
DOI:10.7164/antibiotics.52.900
日期:——
The synthesis and biological properties of 1β-methylcarbapenems with 1-methyl-5-oxopyrrolidin-3-ylthio group at the C-2 position were studied. The sodium (1R, 5S, 6S)-6-[(R)-1-hydroxyethyl]-1-methyl-2-[(R)-1-methyl-5-oxopyrrolidin-3-ylthio]-1-carbapen-2-em-3-carboxylate and its (S)-isomer at the 2-position show potent and well-balanced antibacterial activity. The pharmacokinetic parameters of the pivaloyloxymethyl esters of these two carbapenems were compared in mice. The in vivo potency of these carbapenems was compared with that of cefdinir. Good in vivo efficacy of these ester prodrugs reflected the high and prolonged blood levels in parent drugs achieved after oral administration to mice.
研究了在C-2位具有1-甲基-5-氧吡咯烷-3-基硫代基团的1β-甲基碳青霉烯化合物的合成及其生物学特性。在2-位具有(1R,5S,6S)-6-[(R)-1-羟基乙基]-1-甲基-2-[(R)-1-甲基-5-氧吡咯烷-3-基硫代]-1-碳青霉-2-烯-3-羧酸酯钠盐及其(S)-异构体的化合物显示出强效且平衡良好的抗菌活性。比较了这两种碳青霉烯化合物的特戊酰氧甲酯在小鼠中的药代动力学参数。这些碳青霉烯化合物在体内的效能与头孢地尼进行了比较。这些酯前药在体内的良好疗效反映了通过口服给药达到母药的高浓度和持续血药水平。