An efficient synthesis of methyl heptaglucoside 2 using poly(ethyleneglycol)monomethyl ether as a polymer support is described. Elongation of the acceptor 11, anchored via a succinoyl linkage to PEG, with the appropriate glycosyl donors 4-6 and intermittent protective group manipulations gave fully protected heptamer 18. Deprotection of 18 furnished, after purification as its peracetate, title compound 2 in a good overall yield.