| 摘要 |
2 beta -Acetoxymethyl-2 alpha -methyl-(5R)penam-3 alpha -carboxylic acid 1,1-dioxide, pharmaceutically-acceptable salts thereof and esters thereof readily hydrolyzable in vivo; pharmaceutical compositions containing 2 beta -acetoxymethyl-2 alpha -methyl-(5R)penam-3 alpha -carboxylic acid 1,1-dioxide or salt or ester thereof; and method of enhancing the effectiveness of a beta -lactam antibiotic using 2 beta -acetoxymethyl-2 alpha -methyl-(5R)penam-3 alpha -carboxylic acid 1,1-dioxide or salt or ester thereof. |
