Stereocontrolled syntheses of novel styryl lactones, (+)-goniodiol, (+)-goniotriol, (+)-8-acetylgoniotriol, (+)-goniofufurone, (+)-9-deoxygoniopypyrone, (+)-goniopypyrone, and (+)-altholactone from common intermediates and cytotoxicity of their congeners
作者:Masayoshi Tsubuki、Kazuo Kanai、Hiromasa Nagase、Toshio Honda
DOI:10.1016/s0040-4020(99)00023-x
日期:1999.2
Concise syntheses of (+)-goniodiol, (+)-goniotriol, (+)-8-acetylgoniotriol, (+)-goniofufurone, (+)-9-deoxygoniopypyrone, (+)-goniopypyrone, and (+)-altholactone and their congeners from chiral lactonic aldehydes 27 and 36 as common intermediates are described. The key features in the syntheses are based on the in situ generation of unstable aldehydes 27 and 36 followed by their chemoselective reaction
简捷合成(+)-goniodiol,(+)-goniotriol,(+)-8-乙酰基goniotriol,(+)-goniofufurone,(+)-9-脱氧goniopypyrone,(+)-goniopypyrone和(+)-邻甲内酯描述了它们来自手性内酯醛27和36的同类物,作为常见的中间体。合成中的关键特征是基于原位生成不稳定的醛27和36,然后它们与三异丙氧基苯基钛发生化学选择性反应,从而在C-8位提供非对映异构体28、29和37、38。检查了苯乙烯基内酯同源物对P388鼠白血病细胞的细胞毒性。