8454
A series of small molecule benzenesulfonamide based CA - IX inhibitors containing novel tridentate chelates complexed with the M ( CO ) ( 3 ) core ( M = Re or ( 99m ) Tc ) were designed and synthesized .
 benzenesulfonamide, M ( CO ) ( 3 ), Re, ( 99m ) Tc
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 benzenesulfonamide, M ( CO ) ( 3 ), Re, ( 99m ) Tc