A new "cap-and-tag" strategy is applied to solid phase oligosaccharide synthesis. Acetyl-capping and fluorous-tagging allowed for the facile separation of the desired F-tagged oligosaccharide from the acetyl-capped deletion sequences using fluorous solid phase extraction. To illustrate this approach, a protected Glc-beta-(1-->6)-Man-alpha-(1-->6)-Glc-beta-1-->pentenyl trisaccharide was synthesized.