| abstract |
A compound represented by general formula (I) and having a platelet aggregation inhibitor effect and pharmacologically acceptable salt and solvate thereof, wherein A, B and C represent each CH2 or C=O; X and Y are different from each other and represent CH or N; D represents -(CH2)k- or -(CH2)m-CO-, wherein k represents an integer of 1 to 4, and m represents an integer of 0 to 3; E represents group (II) or (III), wherein n represents an integer of 1 to 3, Z represents -W-(CH2)p-COOR3, W represents -O- or a bond, p represents an integer of 1 to 4, and R3 represents hydrogen, lower alkyl or an ester residue eliminable under physiological conditions; R1 represents hydrogen or lower alkyl; and R2 represents hydrogen or lower alkyl. |