作者:John S. Cooperwood、Vincent Boyd、Giuseppe Gumina、Chung K. Chu
DOI:10.1080/15257770008033005
日期:2000.1
target compounds were synthesized via the key intermediate carbohydrate 8, which was synthesized by first selectively protecting the 1'- and 2'-hydroxyl groups followed by selective tosylation of the 5'-hydroxyl group to obtain compound 3. The tosyl moiety was then replaced by a benzyl either to obtain 4. Compound 4 underwent Dess-Martin oxidation to afford the ketone 5. Compound 5 was subjected to Wittig
通过关键的中间体碳水化合物8合成目标化合物,该化合物通过首先选择性地保护1'-和2'-羟基,然后选择性地甲苯磺酸化5'-羟基来合成化合物3。然后,制备甲苯磺酰基部分。将其用苄基取代以得到4。化合物4进行Dess-Martin氧化,得到酮5。将化合物5进行Wittig烯化反应,得到烯烃6,然后进行区域选择性氢硼化,得到7。化合物7用乙酸完全乙酰化。 ,乙酸酐和硫酸得到关键中间体8。