The present invention discloses compounds according to Formula I:Wherein R1a, R1b, R2, R4, R5, R6a, R6b, R7, R8, W, X, Cy, and the subscript a are as defined herein. The present invention relates to compounds inhibiting autotaxin (NPP2 or ENPP2), methods for their production, pharmaceutical compositions comprising the same, and methods of treatment using the same, for the prophylaxis and/or treatment of diseases involving fibrotic diseases, proliferative diseases, inflammatory diseases, autoimmune diseases, respiratory diseases, cardiovascular diseases, neurodegenerative diseases, dermatological disorders, and/or abnormal angiogenesis associated diseases by administering the compound of the invention.本發明揭示根據式I之化合物:其中R1a、R1b、R2、R4、R5、R6a、R6b、R7、R8、W、X、Cy及下標a係如本文所定義。本發明係關於抑制自趨化素(NPP2或ENPP2)之化合物、其製造方法、包含其之醫藥組合物及使用其之治療方法,該等方法藉由投與本發明化合物來防治及/或治療涉及纖維變性疾病、增生性疾病、發炎性疾病、自體免疫疾病、呼吸道疾病、心血管疾病、神經退化性疾病、皮膚病症及/或異常血管生成相關疾病之疾病。