作者:Derek R. Boyd、Narain D. Sharma、Nuria M. Llamas、John F. Malone、Colin R. O'Dowd、Christopher. C. R. Allen
DOI:10.1039/b502009c
日期:——
bacterial metabolism of iodobenzene, has been used for the synthesis of the pyranose carbasugars (pseudosugars) carba-beta-D-altropyranose 2, carba-alpha-L-galactopyranose 3, carba-beta-D-idopyranose 4 and carba-beta-L-glucopyranose 5. Substitution of the iodine atom by a carbomethoxy group, stereoselective catalytic hydrogenation of an alpha,beta-unsaturated ester, and regioselective inversion of one
通过碘代苯的细菌代谢形成的多用途对映体纯的顺式-二氢二醇代谢物1,已用于合成吡喃糖羧化糖(拟糖),carba-beta-D-altropyranose 2,carba-alpha-L-galactopyranose 3,carba-beta -D-idopyranose 4和carba-beta-L-pyramypyranose5。关键是通过碳甲氧基取代碘原子,α,β-不饱和酯的立体选择性催化加氢以及一个或两个烯丙基手性中心的区域选择性转化石斑鱼2-5的合成中使用的步骤。化合物2-5的相对构型和绝对构型是通过立体化学相关性,X射线晶体学和1H-NMR光谱相结合确定的。