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Table 5 Antimicrobial activity of benzothienopyrimidinone derivatives

From: Therapeutic importance of synthetic thiophene

Compd S. aureus E. coli B. Subtilis S. typhosa
2 µg/ml 5 µg/ml 2 µg/ml 5 µg/ml 2 µg/ml 5 µg/ml 2 µg/ml 5 µg/ml
20a + + ++ + + ++
20b + + + + + ++ + +
20c + + + + + +
  1. Inhibition zone diameter: (–) < 11 mm [inactive]; (+) 11–14 mm [weakly active]; (++) 15–18 mm [moderately active]