#$%^&*AU2020201956B220200709.pdf#####ABSTRACT A pharmaceutical compositions comprising: (a) a carbapenem antibacterial agent selected from imipenem, meropenem, ertapenem, doripenem or a pharmaceutically acceptable derivative thereof, and (b) a compound of Formula (I), or a stereoisomer or a pharmaceutical acceptable derivative thereof, are disclosed. 0 H R N .,,,wherein, R is heterocycloalkyl 0-N 0 OSO 3H Formula (I)