Analogifremgangsmåde til fremstilling af bis-basiske ethere af 2,6-eller 2,7-dihydroxyanthraquinoner eller syreadditionssalte deraf

1299566 Bis basic ethers of dihydroxyanthraquinones RICHARDSON-MERRELL Inc 13 May 1971 [14 May 1970] 14844/71 Heading C2C Novel compounds of formula wherein one symbol R2 is H and the other is of formula R3 and R4 are each H, C 1-3 alkyl or R3 and R4 together with N is a saturated monocyclic heterocyclic group and A is a C 2-3 alkylene chain and acid addition salts thereof, are prepared as defined in the reaction scheme below or by introduction of an alkyl group R3 or R4 in to the compound where R3 or R4 is H. Pharmaceutical compositions in conventional forms for oral, intranasal, bacal or parenteral administration and having anti-viral activity comprise an above novel compounds or salt and a carrier or diluent.