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The homoiminosugars alpha- and beta -homogalactonojirimycins were prepared from a common intermediate, tetra-O-benzyl-D-galacto-heptenitol 6, by way of highly stereoselective reaction sequences… Continue Reading
Synthesis of (22E, 24R)-5α-ergosta-2,22-dien-6-one (1) was achieved in 36% overall yield in four steps starting from ergosterol (2). The key step was the two stage reduction of (22E,… Continue Reading
β-Homonojirimycin 2 was prepared in 27% overall yield from tetra-O-benzyl-d-glucono-1,5-lactone by way of the double reductive amination of a 2,6-heptodiulose (7). This synthetic approach provided… Continue Reading
The homoiminosugars alpha- and beta-homogalactonojirimycins were prepared from a common intermediate, tetra-O-benzyl-D-galacto-heptenitol 6, by way of highly stereoselective reaction sequences… Continue Reading
beta-Homonojirimycin (2) was prepared by the highly stereoselective double reductive amination of a 2,6-heptodiulose derivative (6 or 13) using ammonium formate and NaBH(3)CN. The process was… Continue Reading