For Formula I compounds A1, A2, A3, A4, A5, W1, Y, R1, R2, R3, R4, R5, R6a, R6b, R7, R8, R8a, R8b, R9, R9a, R9b, and R10 and subscript “n” are as defined in the specification. The inventive Formula I compounds are inhibitors of Mnk and find utility in any number of therapeutic applications, including but not limited to treatment of inflammation and various cancers.