Daicel Corporation

Xiande Shen

Yoshio Okamoto

Jun Shen

Junqing Li

Haitao Qu

Guangshun Wu

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.

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Harbin, China

Xiande Shen