| http://www.w3.org/ns/prov#value | - lkyl, NH.sub.2, halogen, azido or alkene; P is independently oxygen or sulfur; and S is an acyclic or cyclicglycosyl group represented by the formulae: ##STR2##where R.sup.3 is independently H, halogen, amino, azido, or hydroxyl; R.sup.4 is independently H or OH; V is oxygen or methylene; and R.sup.5 is OH, (CH.sub.2).sub.n PO(OR.sup.7).sub.2, OP(O)(OR.sup.7).sub.2 ; R.sup.6 is H, lower alkyl,hydr
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