1. G. Bartoszyk, R. Devant, H. Boettcher, H. Greiner, J.-J. Berthelon, M. Brunet, M. Noblet, J.-J. Zeiller, Merck, EP 0707007A (1996).
2. B. Junge, R. Schohe, P.-R. Seidel, T. Glaser, J. Traber, U. Benz, T. Schuurman, J.-M. De Vry, Bayer AG, US Patent 5,137,901 (1992).
3. G. Yiannikouros, P. Kalaritis, J.G. Steenrod, R. Scarborough, Cor Therapeutics Inc., USA, WO 0187871 (2001).
4. Substituted dihydrobenzopyran and dihydrobenzofuran thiazolidine-2,4-diones as hypoglycemic agents
5. Titanocene-Catalyzed Reduction of Lactones to Lactols