25 new compounds with benzothiazole scaffolds were designed and synthesized.
Compounds 14j, 14o-r and 19a-b showed better antifungal activity than fluconazole.
14p displayed moderate activity against Fluconazole-resistant of Candida albicans.
The structure-activity relationships of compounds were discussed.
Mechanism studies revealed that the 14p might act by inhibiting the CYP51.