The present invention provides synthesis, pharmaceutically acceptable formulations and uses of compounds in accordance with Formula I, or a stereoisomer, tautomer or pharmaceutically acceptable salt thereof.For Formula I compounds X, Y, R1, R2, R3a, R3b, R4a, R4b and R5 are as defined in the specification. The inventive Formula I compounds are inhibitors of eIF4A and find utility in any number of therapeutic applications, including but not limited to treatment of inflammation and various cancers.本發明係提供式I化合物或其立體異構物、互變異構物或醫藥上可接受鹽之合成、醫藥上可接受調配物及用途。就式I化合物,X、Y、R1、R2、R3a、R3b、R4a、R4b和R5係如說明書中所定義。本發明之式I化合物為eIF4A之抑制劑且可用於許多治療應用,包括(但不限於)治療發炎和各種癌症。