Patent ID: 7521568

Claim:
An enantiopure compound according to the formula: wherein each substituent R 1 , R 2 and R 3 is disposed in an α or β configuration and where R 1 is selected from a NR 1 R 2 group, an OR 2 group other than OAc or OCH 3 , a SiR 3 R 4 R 5 group, a PR 4 R 5 group, a P(O)R 4 R 5 or P(O 2 )R 4 R 5 group, a SR 3 group, a S(O)R 4 or S(O 2 )R 4 group, azide, cyanide, thiocyanate or a halogen group; R 2 and R 3 are independently selected from H, a substituted or unsubstituted saturated or unsaturated hydrocarbon, a NR 1 R 2 group, an OR 2 or alkylene OR 2 group other than OAc or OCH 3 , a SiR 3 R 4 R 5 group, a PR 4 R 5 group, a P(O)R 4 R 5 or P(O 2 )R 4 R 5 group, a SR 3 group, a S(O)R 4 or S(O 2 )R 4 group, a carboxy or acyl group, azide, cyanide, thiocyanate or a halogen group, with the proviso that R 1 , R 2 and R 3 are not all simultaneously H; R 1 and R 2 are independently selected from H, a C 1 -C 12 substituted or unsubstituted linear, branched or cyclic alkyl, alkenyl or alkynyl group, a substituted or unsubstituted aryl or heteroaryl group, a carboxy, acyl, or imidate group, a trialkylsilyl group, a phosphate, phosphinite, phosphonate or phosphoramidate group, or a sulfite, sulfinite, sulfate, sulfonate or sulfonamide group; R 3 is H, a C 1 -C 12 substituted or unsubstituted linear, branched or cyclic alkyl, alkenyl or alkynyl group, a substituted or unsubstituted aryl or heteroaryl group, an amino, alkyl amino or dialkyl amino group, an alkoxy or aryloxy group, or a carboxy or acyl group; R 4 and R 5 are independently selected from H, OR 6 , a C 1 -C 12 substituted or unsubstituted linear, branched or cyclic alkyl, alkenyl or alkynyl group, a substituted or unsubstituted aryl or heteroaryl group, an acyl thioether or a halogen group; and R 6 is selected from a C 1 -C 12 substituted or unsubstituted linear, branched or cyclic alkyl, alkenyl or alkynyl group, a substituted or unsubstituted aryl or heteroaryl group, a carboxy, acyl, or imidate group, a trialkylsilyl group, a phosphate, phosphinite, phosphonate or phosphoramidate group, or a sulfite, sulfinite, sulfate, sulfonate or sulfonamide group.