| 摘要 |
Disclosed is a compound of formula (I) or a pharmaceutically acceptable salt and/or N-oxide thereof for example, 1-({ 4-[(2,3-Dihydro[1,4]dioxino[2,3-c]pyridin-7-ylmethyl)amino]-1-piperidinyl} methyl)- 1,2-dihydro-3H,8H-2a,5,8a-triazaacenaphthylene-3,8-dione wherein: Z1 and Z2 are independently selected from CH and N and R1a and R1b, R2, R5 and A are defined in the specification for treating bacterial infections.
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