| abstract |
Diazepan derivatives represented by the following formulas ** (Formulas) ** or one of their salts and found that they have an excellent inhibitory action of activated blood coagulation factor X and particularly excellent activity by oral administration. Specifically, this invention relates to diazepan derivatives represented by the following general formulas or a salt thereof and also to a pharmaceutical composition, particularly an activated blood coagulation factor X inhibitor containing the same as effective ingredients. |