作者:Manat Pohmakotr、Supakeat Kambutong、Chutima Kuhakarn、Patoomratana Tuchinda
DOI:10.1055/s-0029-1218690
日期:2010.5
cin is reported here; it involves diastereoselective phenylsulfanylpropylation of an enolate anion derived from methyl (2R,5R,6R)-5,6-dimethoxy-5,6-dimethyl[1,4]dioxane-2-carboxylate, obtained from d-mannitol, and is followed by sulfide oxidation, intramolecular acylation of the α-sulfinyl carbanion, sulfoxide elimination, and hydrolysis. Straightforward access to substituted analogues of (+)-4-desoxypentenomycin
这里报道了(+)-4-脱氧戊新霉素的合成。它涉及衍生自d-甘露糖醇的甲基(2 R,5 R,6 R)-5,6-二甲氧基-5,6-二甲基[1,4]二恶烷-2-羧酸酯衍生的烯酸酯阴离子的非对映选择性苯基硫烷基丙基化,然后进行硫化物氧化,α-亚磺酰基碳负离子的分子内酰化,亚砜消除和水解。通过Suzuki-Miyaura,Sonogashira和Heck偶联反应也证明了直接获得(+)-4-desoxypentenomycin的取代类似物的途径。 含氧环戊烯酮-脱氧环戊烯酮-α-亚磺酰基碳负离子-环化-不对称合成