Studies on prodrugs. VIII. Preparation and characterization of (5-methyl-2-oxo-1,3-dioxol-4-yl) methyl esters of sulbactam and its analogs.
作者:SHOJI IKEDA、FUMIO SAKAMOTO、RYOICHI HIRAYAMA、YASUSHI TAKEBE、MIKIO SOTONURA、GORO TSUKAMOTO
DOI:10.1248/cpb.36.218
日期:——
Several (5-methyl-2-oxo-1, 3-dioxol-4-yl)methyl esters of β-lactamase inhibitors were prepared and evaluated for oral absorbability. Sulbactam (5-methyl-2-oxo-1, 3-dioxol-4-yl)methyl ester (5a) was found to prodece a 5-fold higher serum level of sulbactam than sulbactam itself after oral administration to mice. The diester (15), in which ampicilling is bonded to the 5-methyl group of the above sulbactam ester (5a), was also prepared, but this diester (15) did not produce high serum levels of ampicillin and sulbactam after oral administration to mice.
制备了几种β-内酰胺酶抑制剂的(5-甲基-2-氧代-1, 3-二氧戊环-4-基)甲酯,并对其口服吸收性进行了评估。研究发现,小鼠口服舒巴坦(5-甲基-2-氧代-1, 3-二氧戊环-4-基)甲酯(5a)后,血清中的舒巴坦含量比舒巴坦本身高 5 倍。还制备了二酯(15),其中氨苄西林与上述舒巴坦酯(5a)的 5-甲基键合,但这种二酯(15)在小鼠口服后产生的氨苄西林和舒巴坦血清浓度并不高。