18723
However , compounds 6g and 6f with benzothiazole moiety ( 12 . 5 and 25 mu g / ml ) showed promising activity against Escherichia coli compared to ampicillin ; compounds 6d , 6j bearing triazole and morpholine , respectively , showed promising antitubercular activity ( 25 mu g / ml ) compared to rifampicin .
 benzothiazole, ampicillin, triazole, morpholine, rifampicin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 benzothiazole, ampicillin, triazole, morpholine, rifampicin