The present invention is directed to compounds that are inhibitors of cysteine proteases, in particular, cathepsins B, K, L, F, and S, and are therefore useful in treating diseases mediated by these proteases. The present invention is directed to pharmaceutical compositions comprising these compounds and processes for preparing them.本發明係關於一種化合物,其為半胱胺酸蛋白酶(特定言之組織蛋白酶B、K、L、F及S)之抑制劑且因此適用於治療由此等蛋白酶所介導之疾病。本發明係關於包含此等化合物之醫藥組合物及製備其之方法。