There is provided a compound of formula (1) and
pharmaceutically-acceptable derivatives (including prodrugs) thereof.
Which compound and derivatives are useful as, or are as useful as
prodrugs of, competitive inhibitors of trypsin-like proteases, such as
thrombin, and thus in particular, in the treatment of conditions where
inhibition of thrombin is required (e.g. thrombosis) or as
anticoagulants.