Protecting-group-free synthesis of haterumadienone- and puupehenone-type marine natural products
作者:Hong-Shuang Wang、Hui-Jing Li、Jun-Li Wang、Yan-Chao Wu
DOI:10.1039/c7gc00704c
日期:——
A divergent and expeditious access to haterumadienone- and puupehenone-type marine natural products has been achieved by using a newly developed hemiacetalization/dehydroxylation/hydroxylation/retro-hemiacetalization tandem reaction as one of the key steps. Its applicability is showcased by the first synthesis of haterumadienone, 20-hydroxyhaterumadienone, 20-epihydroxy-haterumadienone and 20-acetoxy-haterumadienone
通过使用新开发的半缩醛化/脱羟基/羟基化/逆半缩醛化串联反应作为关键步骤之一,已获得了迅速而多样的途径获得哈雷马二烯酮和布芬二酮类海洋天然产品的途径。它的适用性通过首次合成的方法包括合成的帽子花呢二烯酮,20-羟基帽子酸二烯酮,20-表羟基帽子酸二烯酮和20-乙酰氧基帽子酸二烯酮,以及容易合成的葛根酮,葛根二酮和葛根酚。合成是有效的,并且原子和步骤经济的(从市售起始原料开始6至9个步骤),并且不需要保护基团和过渡金属。