In this note, we propose an expression for the eigenvectors and scalarproducts for a class of spin chains with long-range interaction and su(2)symmetry. This class includes the Inozemtsev spin chain as well as the BDS spinchain, which is a reduction of the one-dimensional Hubbard model athalf-filling to the spin sector. The proposal is valid for large spin chainsand is based on the construction of the monodromy matrix using the Dunkloperators. For the Inozemtsev model these operators are known explicitly. Thisconstruction gives in particular the eigenvectors of (an operator closelyrelated to) the dilatation operator of the N=4 gauge theory in the su(2) sectorup to three-loop order, as well as their scalar products. We suggest how thiswill affect the expression for the quasi classical limit of the three-pointfunctions obtained by I. Kostov and how to include the all-loop interaction.
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