| abstract |
The invention relates to a chemical compound of the disaccharide type of the following general formula (A): where, Z = O or S; X1 = azido or NHCOR3 where R3 = 1 -5 c alkyl or aryl, X2 = benzyl, H or sulfonate, X3 = -CH2f, -CHf forming a ring with the atom O at C(5), where f = phenyl, H or sulfonate, X4 = H, sulfonate or the carbon atom of -CHf given by X3; R1 = 2 -5 C allyl or 1 - 5 C alkyl, R2 = 1 - 5C alkyl, Y3 = benzyl, H or sulfonate and Y5 = H or sulfonate. |