The title compound was synthesized fromD-glucose as a key intermediate of D-Inositol-1,4,5-triphosphate synthesis without doing any optical resolution by utilizing C2 symmetry.
2-Aminohexahydrobenzoxazole analogue 1a, related to trehazolin (2) was synthesized using the Ferrier reaction as a key step. The structural elucidation of this compound by NMR analysis indicated that it is an inseparable mixture of three components (1a-c) which in turn stems from the propensity of 1a to partially undergo both transcyclization (1a --> 1b) of the aminooxazoline between the hydroxy group at the C-1 position of aminocyclitol in the aglycon moiety and the hydroxy group at the C-2 position of D-glucose moiety and successive transformation (1b --> 1c) of the D-glucose moiety from a pyranose to a furanose structure.