-Alkylidene butenolides bearing a deoxyriboside, a steroid, and a metallocene moiety were synthesized by stereoselective sequential cross-coupling lactonization procedure from the corresponding functionalized terminal alkynes with 3-iodopropenoic acids. The high selectivity of the butenolide ring formation was secured by the Pd/Cu salt ratio. The resulting compounds were tested for antifungal and cytostatic