This application relates to compounds of Formula (I): or pharmaceutically acceptable salts or stereoisomers thereof, which are inhibitors of PI3K-γ which are useful for the treatment of disorders such as autoimmune diseases, cancer, cardiovascular diseases, and neurodegenerative diseases.本申請案係關於式(I)化合物:或其醫藥學上可接受之鹽或立體異構體,其為適用於治療諸如自體免疫疾病、癌症、心血管疾病及神經退化性疾病之病症的PI3K-γ抑制劑。