The present invention provides a novel compound having the general formula (I) wherein R1, R2, R3, R4, R5, R6, R7, A, E and n are as previously described herein. , Compositions comprising the compounds and methods of using the compounds are provided.本発明は、一般式(I)[式中、R1、R2、R3、R4、R5、R6、R7、A、E及びnは、本明細書に前記されるとおりである]を有する新規な化合物、本化合物を包含する組成物及び本化合物の使用方法を提供する。