Patent ID: 8828905

Claim:
A method for producing a porous base matrix having a formyl group, comprising steps of allowing a halohydrin or a bis- or higher-functional epoxy compound to act on a raw material porous base matrix in order to introduce an epoxy group to the raw material porous base matrix, transforming the epoxy group into a glyceryl group, allowing a periodate salt to act on the glyceryl group in order to transform the glyceryl group into a monoformyl group, allowing a five-membered ring sugar containing at least an amino group or a six-membered ring sugar containing at least an amino group to react with the epoxy group and the monoformyl group in order to introduce a group represented by the general formula (1): wherein, R 1 represents a group forming the sugar with —CH(OH)—CH(OH)—, transforming the group (1) with a periodate salt into a group represented by the general formula (2): wherein, R 1 is the same as the above.