The present invention discloses compounds according to Formula (I) wherein A, X, L1, R1, R2, R3, R4a, R4b, R5, R6, and the subscript n are as defined herein. The present invention relates to compounds, methods for their production, pharmaceutical compositions comprising the same, and methods of treatment using the same, for the prophylaxis and / or treatment of proliferative diseases by administering a compound of the invention.