A compound represented by the following general formula (1) or a salt thereof or a hydrate of the foregoing is safe while exhibiting suitable physicochemical stability, and is useful as therapeutic or prophylactic agents for diseases associated with thrombus formation. wherein R1a, R1b, R1c and R1d each independently represent hydrogen, etc., R2 represents optionally substituted phenyl, etc., R3 represents optionally substituted C6-10 aryl, etc., Z1, Z2 and Z3 each independently represent hydrogen, etc., Z4 represents hydrogen, etc. and X represents a single bond or —CO—, etc.