Three Component Reaction: An Efficient Synthesis and Reactions of 3,4-Dihydropyrimidin-2(1H)-Ones and Thiones Using New Natural Catalyst

Table 3

Inhibition zone resulted from the effect of the antibiotic (Streptophenicol) and tested compounds on Escherichia  coli and Staphylococcus  aureus.

Compounds no.; (1 × 10^−2)	Escherichia  coli	Staphylococcus  aureus
	Zone of inhibition
Antibiotic (Streptophenicol)	25	14.75
	12	12
	11	12.75
	11	12.5
	12	14.5
	10.5	14