Chemoenzymatic Synthesis of Carbasugars (+)-Pericosines A−C from Diverse Aromatic <i>cis</i>-Dihydrodiol Precursors
作者:Derek R. Boyd、Narain D. Sharma、Carmen A. Acaru、John F. Malone、Colin R. O’Dowd、Christopher C. R. Allen、Paul J. Stevenson
DOI:10.1021/ol100525r
日期:2010.5.21
cis-Dihydrocatechols, derived from biological cis-dihydroxylation of methyl benzoate, iodobenzene and benzonitrile, using the microorganism Pseudomonas putida UV4, were converted into pericosines A, C, and B, respectively. This approach constitutes the shortest syntheses, to date, of these important natural products with densely packed functionalities.
Chemoenzymatic synthesis of the carbasugars carba-β-l-galactopyranose, carba-β-l-talopyranose and carba-α-l-talopyranose from methyl benzoate
作者:Derek R. Boyd、Narain D. Sharma、Nigel I. Bowers、Gerard B. Coen、John F. Malone、Colin R. O'Dowd、Paul J. Stevenson、Christopher C. R. Allen
DOI:10.1039/b921545j
日期:——
The cis-dihydrodiol metabolite from methyl benzoate has been used as a synthetic precursor of carba-β-L-galactopyranose, carba-β-L-talopyranose and carba-α-L-talopyranose. The structures and absolute configurations of these carbasugars were determined by a combination of NMR spectroscopy, stereochemical correlation and X-ray crystallography.
苯甲酸甲酯的顺式二氢二醇代谢物被用作carba-δ²-L-吡喃半乳糖、carba-δ²-L-吡喃谷糖和carba-δ±-L-吡喃谷糖的合成前体。这些碳糖的结构和绝对构型是通过核磁共振光谱、立体化学相关性和 X 射线晶体学相结合的方法确定的。