Enantioselective Synthesis of the .ALPHA.-Pyrone Subunit of Verrucosidin.
作者:Susumi HATAYAMA、Noriko OCHI、Seiichi TAKANO
DOI:10.1248/cpb.41.1358
日期:——
4-Methoxyl-6-[(1S)-1-(trimethylsilyloxy)-1-methyl-2-oxobutyl]-3, 5-dimethyl-2H-pyran-2-one (4), a key α-pyrone subunit for the synthesis of verrucosidin (1), has been prepared from 6-ethyl-4-hydroxy-3, 5-dimethyl-2H-pyran-2-one (5) in an enantiomerically pure form.
4-甲氧基-6-[(1S)-1-(三甲基
硅氧基)-
1-甲基-2-氧代丁基]-3, 5-二甲基-
2H-吡喃-2-酮(4)是合成藜芦苷(1)的关键
α-吡喃酮亚基,该化合物是由对映体纯度为 6-乙基-
4-羟基-3, 5-二甲基-
2H-吡喃-2-酮(5)制备而成。