| http://www.w3.org/ns/prov#value | - If desired, R1 or R7, in so far as R1 or R7 is a permanently protecting group, can now be replaced by X or Y insofar as X or Y???H. In the oligosaccharides according to the present invention, X is preferably hydrogen; in that case, R1 is preferably a permanently protecting group.
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