Terbinafine hydrochloride

Terbinafine hydrochloride (TDT 067 hydrochloride) is an orally active and potent antifungal agent. Terbinafine hydrochloride is a potent non-competitive inhibitor of squalene epoxidase from Candida, with a K_i of 30 nM. Terbinafine hydrochloride also shows antibacterial activity against certain Gram-positive and Gram-negative bacteria^[1][2][3]. Terbinafine hydrochloride is a click chemistry reagent, itcontains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups. IC50 & Target: Ki: 30 nM (squalene epoxidase)^[1] In Vitro: Terbinafine has a primary fungicidal action in vitro against most fungal pathogens, including dermatophytes, and dimorphic and filamentous fungi. Terbinafine specifically inhibits fungal ergosterol biosynthesis at the point of squalene epoxidation. The treated fungal cells rapidly accumulate tlic intermediate squalene and become deficient in the end-product of the pathway, ergosterol^[1]. In Vivo: Terbinafine is not only active after topical application but is very effective in experimental dermatophytoses following oral administration. In fungi infected guinea-pigs, the skin temperature dropps dramatically after the fourth treatment of terbinafine^[2].