Provided herein are compounds, such as a compound of Formula (I), as described herein, or a pharmaceutically acceptable salt thereof, that are immunoproteasome (such as LMP2 and LMP7) inhibitors. The compounds described herein can be useful for the treatment of diseases treatable by inhibition of immunoproteasomes. Also provided herein are pharmaceutical compositions containing such compounds and processes for preparing such compounds.本文提供了化合物，像如本文所述的具有化學式(I)之化合物， 或其藥學上可接受的鹽，其係免疫蛋白酶體（如LMP2和LMP7）抑制劑。本文所述的化合物可用於治療可藉由抑制免疫蛋白酶體治療之疾病。本文還提供了含有此類化合物的醫藥組成物以及用於製備此類化合物之方法。
