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 R<SP>2</SP> is H and the other is of formula R<SP>3</SP> and R<SP>4</SP> are each H, C 1-3 alkyl or R<SP>3</SP> and R<SP>4</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 R<SP>3</SP> or R<SP>4</SP> in to the compound where R<SP>3</SP> or R<SP>4</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. |