This invention pertains to fused ring compounds of Formula (I), as further detailed herein, which are used for the inhibition of Ras proteins, as well as compositions comprising these compounds and methods of treatment by their administration.本發明係關於式(I)之稠環化合物,如本文中進一步詳述,其用於抑制Ras蛋白;以及包含該等化合物之組成物及藉由其投與之治療方法。