| abstract |
(57) [Summary] (Correction) [Structure] A medicament for promoting blood circulation, which comprises a compound represented by the general formula (I) as an active ingredient. [In the formula, R 1 is a hydrogen atom, C 1 -C 3 alkyl, (halo-substituted) benzoyl, carboxy, alkoxy (or aryloxy) carbonyl, etc .; R 2 and R 5 are hydrogen atoms, Methyl, carboxymethyl, hydroxymethyl, formyl, acetyl, etc .; R 3 and R 4 are hydrogen atom, aryloxycarbonyl, (halo-substituted) benzoyl, etc.] [Effect] The compound of formula (I) has significantly strong blood circulation. It has a promoting effect and is useful for treating various diseases caused by poor circulation. |