New orally active cephalosporin esters.
نویسندگان
چکیده
and 9b, were prepared as reported in the ref3). The other pivaloyloxymethyl esters, 9c, 9d and 9e, were prepared via another procedure, which is shown in Scheme 2. Other esters llp~ llw were prepared in the manner similar to that of 9e from the sodium salt of 5e and the corresponding halides. The latter halides were prepared from chloromethyl chlorosulfate (or chloromethyl iodide) and the corre-
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ورودعنوان ژورنال:
- The Journal of antibiotics
دوره 43 5 شماره
صفحات -
تاریخ انتشار 1990