All the tested compounds inhibited the spore germination
against tested fungi except compound 8. In general, most of the
compounds showed slightly higher antifungal activity towards
Penicillium chrysogenum than Aspergillus niger. Amongst all the
compounds 5c displayed greater inhibitory activity particularly
against P. chrysogenum when compared with the standard drug
Ketoconazole (Table 2 & Fig. 3). Moreover compounds 7c and 11c
exhibited good activity. In fact compounds having pyrazole and
pyrrole in combination with thiadiazole were displayed high
inhibitory activity than others.