首页>
外国专利>
Nitro:aryl glycoside(s) of glucose oligomers - useful for determn. of alpha-amylase in serum
Nitro:aryl glycoside(s) of glucose oligomers - useful for determn. of alpha-amylase in serum
展开▼
机译:葡萄糖低聚物的硝基:芳基糖苷-用于测定。血清中α-淀粉酶的含量
展开▼
页面导航
摘要
著录项
相似文献
摘要
Nitroaryl glycosides of formula (I) are new: (where n = 2-4; R is phenyl, 1-naphthyl or 2-naphtyl substd. by X and Y, where X and Y are H, NO2, halogen, 1-4C alkyl, 1-6C alkoxy, or 2-7C alkoxycarbonyl, provided that at least one is NO2). Cpds. (I) are useful as reagents for the determn. of alpha-amylase in serum. Contact with alpha-amylase followed by treatment with maltase and alkali giveas a nitrophenolate ion which can be detected spectrophotometrically without interference from glucose; this technique is simpler than that described in US3879263. In an example, a mixt. of alpha-and beta-(4-nitrophenyl) maltotetraoside is prepd. from the corresp. tridecaacetyl deriv.
展开▼