New 4,7-di:amino-2-piperazino-pteridine derivs. - with antithrombotic and metastasis inhibiting activity

摘要

Piperazino-pteridine derivs. of formula (I) and their acid addition salts are new: R1 = phenalkylamino, mono-or di-alkylamino, piperidino, morpholino, thiomorpholino (or its S-oxide; R2 = dialkylamino, thiomorpholino (or its S-oxide), or piperidino; R3 = halo, alkoxy, alkylthio, phenalkoxy or phenalkylthio (all alkyl 1-3C).