A process for the preparation of the bis-basic ethers of 2,6-or 2,7-dihydroxyanthraquinoner or acid addition salts thereof.

摘要

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 RSP2/SP is H and the other is of formula RSP3/SP and RSP4/SP are each H, C 1-3 alkyl or RSP3/SP and RSP4/SP 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 RSP3/SP or RSP4/SP in to the compound where RSP3/SP or RSP4/SP 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.