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In this note,we use the pairing induced by the interchange map in conjunction with the strongly homotopy commutative algebra structure to define products on the Eilenberg-Moore differential Tor and give a simplified proof of an improved outcome of Jones’s result due to Ndombol and Thomas.As a result,we establish an isomorphism of graded algebras between the Hochschild homology and the free loop space cohomology of a simply connected topological space.