作者:Claudio Curti、Franca Zanardi、Lucia Battistini、Andrea Sartori、Gloria Rassu、Luigi Pinna、Giovanni Casiraghi
DOI:10.1021/jo061521t
日期:2006.10.1
Highly direct, modular syntheses of several natural 8,4‘-oxyneolignans [(−)-1, (+)-1, (−)-2, and (−)-3] and some related variants [(−)-26, (+)-26, (+)-27, and (−)-28] are reported. Utilizing (S)- or (R)-methyl lactate as the chiral sources, two complementary syn- or anti-oriented routes were designed, encompassing nine and five steps, which were carried out to deliver the targets in an enantiomerically
几种天然8,4'-氧新木质素[(-)- 1,(+)- 1,(-)- 2和(-)- 3 ]和一些相关变体[[-]- 26的高度直接的模块化合成,(+)- 26,(+)- 27和(-)- 28 ]被报道。利用(S)-或(R)-乳酸甲酯作为手性来源,两个互补的顺式或反式设计了定向途径,包括九个步骤和五个步骤,以对映体纯形式递送靶标。乳酸框架上两个独立的芳基和芳氧基部分的实施方案是根据面向多样性的方案,由共同的前体,醛6和ent - 6为顺式路线,甲磺酰基酯19和ent - 19为顺式路线。反导向路线。这些合成为8,4'-氧新烯化合物的广泛多样的生成及其成员的广泛生物学询问奠定了基础。