| abstract |
(57) [Summary] [Structure] The present invention has the general formula: (In the formula, R 1 , R 2 and R 5 , R 6 together represent H or a double bond, and R 3 and R 4 respectively represent H, alkyl and hydroxyalkyl.) It is a drug product having active oxygen scavenging action, which is mainly composed of [Effect] According to the present invention, not only is it a substance having an active oxygen scavenging action known so far, for example, O 2 − as compared with SOD, etc., but also has an scavenging activity for · 0H, H 2 O 2, etc. Therefore, a more excellent action in the body can be expected. On the other hand, ischemic heart disease sequelae, cerebral infarction sequelae, ischemic disorders such as stress ulcer, chronic rheumatism, SLE, nephritis, inflammatory diseases such as asthma, and further cancer, diabetes, cataract, arteriosclerosis, drug and pesticide poisoning, Since many diseases such as retinopathy of prematurity, photosensitivity, and radiation damage that are thought to involve active oxygen and radicals are known, effective treatment with a preparation containing the derivative of the present invention can be expected. |