The present invention relates to substituted triazole compounds and compositions comprising substituted triazole compounds. The invention further relates to methods of inhibiting the activity of Hsp90 in a subject in need thereof and methods for preventing or treating hyperproliferative disorders, such as cancer, in a subject in need thereof comprising administering to the subject a substituted triazole compound of the invention, or a composition comprising such a compound.本發明係關於經取代的三唑化合物與包含經取代的三唑化合物之組成物。本發明進一步係關於在一個需要抑制Hsp90活性的受藥者中抑制Hsp90活性之方法,與用於在一個需要預防或治療過度增殖失調症(例如癌症)的受藥者中預防或治療過度增殖失調症的方法,其包含將本發明之經取代的三唑化合物(或包含如此化合物之組成物)投藥至該受藥者。