The invention provides novel compounds having the general formula (I) wherein R1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12, A1, A2 A3 and n are as described herein, compositions including the compounds and methods of using the compounds.本發明提供具有通式(I)之新穎化合物:其中R1、R2、R3、R4、R5、R6、R7、R8、R9、R10、R11、R12、A1、A2、A3及n係如本文所述;包括該等化合物之組合物;及使用該等化合物之方法。