Patent ID: 6780980
Filing Date: 2004-08-24
Classification: C07H

Abstract:
A process for the preparation of a carbohydrate structure on a material surface comprising the steps of:(a1) photochemically fixing one or more different compounds of formula onto the material surface,wherein X is the radical of a mono- or oligosaccharide, R is a divalent organic radical having from 2 to 30 C-atoms which may be further substituted, Z is â€”Oâ€”, â€”Sâ€” or a direct bond, Y is a functional group linking R to the aromatic ring, R1 is an electron-withdrawing substituent and n is an integer from 0 to 4, Q is a radical of formula and R2 is an electron-withdrawing substituent; or (a2) photochemically fixing a compound of formula wherein R, R1, n, Y, Z and Q are as defined above, onto the material surface and subsequently converting the â€”ZH groups to â€”Zâ€”X moieties, wherein X has the above meaning; and (b) enzymatically attaching one or more further carbohydrate to the X radicals of the modified surface obtained according to step (a1) or (a2).