| abstract |
Pharmaceutical compounds as follows: n9,10-dihydro-9,10-dioxo-4,5,8-trimethoxyanthracene-2-carboxylic acid, n4,5-diethoxy-9,10-dihydro-9,10-dioxoanthracene-2-carboxylic acid, n9,10-dihydro-9,10-dioxo-4,5-dipropoxyanthracene-2-carboxylic acid, n4,5-dibutoxy-9,10-dihydro-9,10-dioxoanthracene-2-carboxylic acid, n9,10-dihydro-5,8-dimethoxy-9,10-dioxoanthracene-2-carboxylic acid, n7-acetoxy-9,10-dihydro-9,10-dioxoanthracene-2-carboxylic acid; nand salts and esters thereof. |