| 摘要 |
PROBLEM TO BE SOLVED: To provide a new carbapenem compound and a method for producing the same. SOLUTION: This new carbapenem compound is a compound expressed by the formula (1) [wherein, R1 is H or methyl; R2 is H or a blocking group for hydroxy; R3 is H or a blocking group for carboxy; R4 is H or a blocking group for amino; R5 is H, a blocking group for amino or following groups which may be substituted (formimidoyl, acetoimidoyl, amidino, a lower alkanoyl, a lower alkoxycarbonyl, a lower alkyl, an alkenyl or an aralkyl); and (n) is 0-4 integer] or its pharmaceutically permissible salt.
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