“…[7][8][9][10][11] Small ring heterocycles, such as epoxides, are present in several natural compounds 12,13 and represent highly versatile building blocks, frequently involved in the synthesis of pharmaceuticals and bioactive products. [14][15][16] In addition, carbohydrates possess several hydroxyl groups, which is a unique and valuable characteristic to serve as binding sites, being easily converted to other functional groups based on the structural requirements for catalyst development. In addition, the attachment of bulky groups to these hydroxyl moieties can also be used to block the space around the reactive site of the catalyst, which can control and direct the stereochemistry of the reaction.…”