| abstract |
There are provided a compound represented by the formulan(I):n nwherein X and X' are -N(COOCR 3 R 2 OCOR 1 )-, -O- or the like, R 1 isnalkyl substituted with carbamoyl, lower alkylcarbamoyl,ncarbamoyloxy, lower alkylcarbamoyloxy, acetylamino or the like,nR 2 and R 3 are hydrogen or the like, Y and Y' are lower alkyl,nlower alkenyl or the like, ring A, ring B and ring C arenoptionally substituted aromatic carbocycle or optionallynsubstituted heterocycle, W 1 , W 2 and/or W 3 are a bond or the like,nand V 1 and V 2 are a single bond or the like, or a pharmaceuticallynacceptable salt or a solvate thereof, as well as anpharmaceutical composition containing the present compound. |