Urokinase inhibitors

A urokinase inhibitor of the formula I:

• 1
• in which the substituent Y can be present in the 3 position or 4 position and is an amidino group
• 2
• in which R5 is an H, an OH or a carbonyl radical —CO—R or oxycarbonyl radical —COO—R, where R can be a branched or unbranched alkyl having 1-16 C atoms, a substituted or unsubstituted aryl or heteroaryl radical or a substituted or unsubstituted aralkyl or heteroaralkyl radical,
• X is a CH group or N,
• R1 is H or a branched or unbranched alkyl having 1-8 C atoms or a (CH2)n—OH in which n=1-5,
• R2 is an H or a branched or unbranched alkyl having 1-8 C atoms,
• R3 is a (CH2)n—OH in which n=1-5 or is a branched or unbranched alkyl having 1-8 C atoms or is present in prodrug form and is a (CH2)n—OX in which n=1-5, where X can be an alkyl, aralkyl or aralkylcarbonyl radical or a corresponding oxycarbonyl radical,
• and R4 is a sulfonyl radical —SO2—R, a carbonyl radical —CO—R, an oxycarbonyl radical —COO—R or an H, where
• R is a branched or unbranched alkyl having 1-16 C atoms, a substituted or unsubstituted aryl or heteroaryl radical, a substituted or unsubstituted aralkyl or heteroaralkyl radical or an adamantyl radical or a camphor radical.