Preparation of 7-epi-cephalosporin derivatives.
نویسندگان
چکیده
position 6,1-4) the preparation of 7-epi-aminocephalosporanic 'acid (7a-ACA) has thus far not been reported. Some 7-epi-cephalosporins have been prepared by base-catalyzed epimerization of cephalosporin sulfoxidesu or acidcatalyzed ring expansion of 6-epi-penicillins.e) Both procedures, however, are not convenient for the preparation of 7-epi-cephalosporin derivatives. We wish to report the direct
منابع مشابه
Cephalosporin podand derivatives.
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ورودعنوان ژورنال:
- The Journal of antibiotics
دوره 27 11 شماره
صفحات -
تاریخ انتشار 1974