Studies on Semisynthesis and Antibacterial Activities of 7β-(l-aryl-5-methyl-l,2,3-triazol-4-acylamido)-3-(2-substituted-1,3,4-oxadizol-5-thiomethyl) Cephalosporin
1. National Laboratory of Applied Organic Chemistry, Department of Chemistry, Lanzhou University, Lanzhou 730000;2. Institute of Applied Pharmacy, Beijing Medical University, Beijing 100083