2-O-β-d-glucopyranosyl-l-ascorbic acid (AA-2βG) provides a source of sustained release of ascorbic acid (vitamin C) upon α-glucosidase activity inside the human body, and is therefore an ingredient of cosmetics, food, and medicinal products. Commercial synthesis of the compound is highly demanded and is attempted from time to time, aimed at improved and commercially viable strategies. We synthesized the AA-2βG in five steps starting from ascorbic acid with a 31.4% overall yield. The synthetic steps do not need column purification except one, and the final product is pure enough to be utilized for application purposes.

中文翻译：

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2-O-β-d-吡喃葡萄糖基-l-抗坏血酸的简易和改进合成

2- O -β- d -吡喃葡萄糖基- l -抗坏血酸 ( AA-2βG ) 是人体内α-葡萄糖苷酶活性持续释放抗坏血酸（维生素C）的来源，因此是化妆品的成分，食品，医药产品。该化合物的商业合成需求量很大，并且不时有人尝试，旨在改进和商业上可行的策略。我们从抗坏血酸开始分五步合成了AA-2βG ，总收率为 31.4%。合成步骤除一个外不需要柱纯化，最终产品纯度足以用于应用目的。