| abstract |
The present invention provides a novel chitosan compound represented by formula (I) and a separating agent for optical isomers. In formula (I), R is independently a group represented by formula (II) or a group represented by formula (III). group, R a is an alkyl group with 1 to 5 carbon atoms or a branched alkyl group with 3 to 5 carbon atoms, n is an integer of 5 or more, and in formulas (II) and (III), R b is independently It is an unsubstituted phenyl group, a substituted phenyl group, an unsubstituted cyclohexyl group, or a substituted cyclohexyl group, and the substituents are independently an alkyl group having 1 to 5 carbon atoms or a halogen. |