14282
One of the compound having t - butyl at para position of the benzene ring showed excellent activity even better than the standard drug ethambutol with MIC value 1 . 1 +/- 0 . 2 mu M .
 t - butyl, benzene, ethambutol
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 t - butyl, benzene, ethambutol