J. Guervenou et G. Sturtz, SYNTHESIS OF GEM-BISPHOSPHONIC CONJUGATES OF CORTISONE DERIVATIVES, Phosphorus, sulfur and silicon and the related elements, 88(1-4), 1994, pp. 1-13
Some gem-bisphosphonic cortico-steroid conjugates are prepared by este
rification between gem-bisphosphonate carboxylic acids and steroid pri
mary alcohols. These original products take place in a biological stud
y about a delivery-targeting concept of active constituents in bone th
erapy, with the assistance of gem-bisphosphonic building-blocs.