| abstract |
Compounds which may have anti-inflammatory activity of the general formula (I), wherein R 1, R 2, R 3 are each independently H or C 1 -4 alkyl group or C 2 -4 acyl group; R 4 and R 5 are each independently H or a group of the formula -SO 3 R 6 , R 6 It is H or C 1 -4 alkyl group or C 2-4 acyl group and; R 4 and R 5 is a group of the formula -SO 3 R 6 , or a pharmaceutically acceptable salt thereof. |