Daicel Corporation

Jun Shen

Yoshio Okamoto

Zhongzheng Yang

Lili Zhang

Xiande Shen

Haitao Qu

Junqing Li

Geng Li

Xuepeng Wu

Guangshun Wu

Hongzhong Deng

Qiang Li

Provided are a novel amylose derivative which exhibits excellent optical isomer separability and which is suitable as an optical isomer separating agent; and an optical isomer separating agent containing the amylose derivative. A task is attained by an amylose derivative having a constituent unit represented by formula (I) below; In below formula (I), Ris a substituent group represented by any of formulae 1 to 3 below, and Ris a substituent group represented by any of formulae a to g below. Rand Rare different substituent groups. A combination of Rand Rin which Ris a substituent group represented by structural formula 3 and Ris a substituent group represented by structural formula c is excluded from the formula (I). 

Amylose derivative and optical isomer separating agent containing same

An object of the present invention is to provide a novel polysaccharide derivative used for a separating agent for optical isomers. The novel polysaccharide derivative contains a structure in which a hydrogen atom of a hydroxyl group or an amino group at the 2-position in a structural unit of the polysaccharide is substituted with a monovalent group represented by the following general formula (1), and a hydrogen atom of a hydroxyl group or an amino group at the 3-position in the structural unit is substituted with a monovalent group represented by the following general formula (2):R&#x2014;NH&#x2014;CO&#x2014;&#x2003;&#x2003;(1)R&#x2014;NH&#x2014;CO&#x2014;&#x2003;&#x2003;(2)where Rand Rrepresent substituted or unsubstituted aryl groups which are different from each other.

Polysaccharide derivative, method for producing the same, and separating agent

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Harbin, China

Jun Shen