CEFTOLOZANE OR A PHARMACEUTICALLY ACCEPTABLE SALT, IN PARTICULAR A SALT OF SULFURIC ACID (ZERBAXA)

摘要

The present invention relates to a compound of the formula [I]: wherein RSUP1 /SUPis lower alkyl, hydroxy(lower)alkyl or halo(lower)alkyl, and RSUP2 /SUPis hydrogen or amino protecting group, or RSUP1 /SUPand RSUP2 /SUPare bonded together and form lower alkylene or lower alkenylene; RSUP3 /SUPis hydrogen or lower alkyl; RSUP4 /SUPis RSUP5 /SUPis carboxy or protected carboxy; and RSUP6 /SUPis amino or protected amino, or a pharmaceutically acceptable salt thereof, a process for preparing a compound of the formula [I], and a pharmaceutical composition comprising a compound of the formula [I] in admixture with a pharmaceutically acceptable carrier.