作者:Qiuan Wang、Yanlin Li、Qingqi Chen
DOI:10.1081/scc-120021040
日期:2003.7
A convenient and highly efficient synthesis of optically pure trans(+)-sobrerol (1), starting from methyl 3,5-dihydroxy-4-methyl benzoate 2 in 8 steps with overall yield 26%, is reported. The key intermediate 4 is prepared in remarkably high yield by selectively esterification of 3 using lipase as catalyst. A critical step to stereoselectively inverse the configuration of 7 is realized under Mistunobu conditions.