The present invention relates to compounds of the Formula I, wherein L, X, Y, Z, R1, R2, R3 and R4 are defined herein. The invention also provides methods of using the compounds for inhibition of kinases, more specifically ALK kinases. The invention provides compounds for modulating protein kinase enzymatic activity for modulating cellular activities such as proliferation, differentiation, programmed cell death, migration and chemoinvasion. Compounds of the invention inhibit, regulate and/or modulate kinase receptor signal transduction pathways related to the changes in cellular activities as mentioned above, and the invention includes compositions which contain these compounds, and methods of using them to treat kinase-dependent diseases and conditions; (Formula I).