Jg. Fernandez-bolanos et al., Stereoselective synthesis of imidazolidine, imidazoline and imidazole C- and N-pseudonucleosides, TETRAHEDR-A, 10(15), 1999, pp. 3011-3023
Methyl 2-deoxy-2-isothiocyanato-alpha-D-glucopyranoside 2, which exists in
equilibrium with the corresponding 2,3-cyclic carbamate 1, reacts with D-gl
ucosamine producing the pseudo-C and N-nucleoside of chiral imidazolidine-2
-thione 3, in good yield and high stereoselectivity. Starting from 3, diffe
rent pseudo-C- and N-nucleosides of imidazoline-2-thione 6-11, and of imida
zole 12 and 13 are obtained. Conformational aspects of some of the prepared
compounds are discussed. (C) 1999 Elsevier Science Ltd. All rights reserve
d.