Employing thujone-derived intermediates, a series of achiral (9a–d; Scheme 1) and chiral (11b and 11d;Scheme 2) terpene analogues related to the biologically active ‘terpenoid’ hybrids have been prepared. The stereochemistry of the key epoxidation reaction was established by correlation of the product 11b with the previously reported alcohol (R)-20 of known absolute configuration (Scheme 3).
利用
硫黄酮衍生的中间体,已经制备了与
生物活性“
萜类”杂种有关的一系列非手性(9a-d;方案1)和手性(11b和11d;方案2)
萜类似物。通过产物11b与先前报道的具有绝对绝对构型的醇(R)-20的相关性,建立关键环氧化反应的立体
化学(方案3)。