ABSTRACT
To improve the aqueous solubility of anti-methicillin-resistant
Staphylococcus aureus
cephalosporin RWJ-333441 for parenteral administration, acyl derivatives of the C-3 primary amino group were prepared and evaluated for solubility, cleavage in serum in vitro, and conversion to RWJ-333441 in vivo. Improved solubility at physiologic pH values and release of RWJ-333441 in vitro and in vivo were observed for several prodrugs, including the aspartate derivative RWJ-333442.
摘要
为了提高抗耐
甲氧西林金黄色葡萄球菌的
水溶性
头孢菌素
头孢菌素 RWJ-333441 的
水溶性,制备了 C-3 伯
氨基的酰基衍
生物,并对其溶解性、在体外血清中的裂解情况以及在体内转化为 RWJ-333441 的情况进行了评估。结果表明,包括
天冬氨酸衍
生物 RWJ-333442 在内的几种原药在生理 pH 值下的溶解度以及 RWJ-333441 在体外和体内的释放情况均有所改善。