New cytotoxic diterpenylnaphthohydroquinone derivatives obtained from a natural diterpenoid
摘要:
Diterpenylquinone/hydroquinone derivatives were prepared through Diels-Alder cycloaddition between natural myrcecommunic acid or its methyl ester and p-benzoquinone (p-BQ), using BF3 center dot Et2O as catalyst or under microwave (Mw) irradiation. Acetyl, methyl and benzyl derivatives of several diterpenyinaplithohydroquinone were prepared from cycloadducts following two basic synthetic strategies, either protection before aromatisation or viceversa. Some of them were further functionalised at the B-ring of the decaline core. Most of the new compounds were evaluated and some of them resulted cytotoxic against several tumour cell lines with IC50 values tinder the mu M level. (c) 2007 Elsevier Ltd. All rights reserved.
New cytotoxic diterpenylnaphthohydroquinone derivatives obtained from a natural diterpenoid
作者:José M. Miguel del Corral、M. Angeles Castro、M. Lucena Rodrı´guez、Pablo Chamorro、Carmen Cuevas、Arturo San Feliciano
DOI:10.1016/j.bmc.2007.06.005
日期:2007.9.1
Diterpenylquinone/hydroquinone derivatives were prepared through Diels-Alder cycloaddition between natural myrcecommunic acid or its methyl ester and p-benzoquinone (p-BQ), using BF3 center dot Et2O as catalyst or under microwave (Mw) irradiation. Acetyl, methyl and benzyl derivatives of several diterpenyinaplithohydroquinone were prepared from cycloadducts following two basic synthetic strategies, either protection before aromatisation or viceversa. Some of them were further functionalised at the B-ring of the decaline core. Most of the new compounds were evaluated and some of them resulted cytotoxic against several tumour cell lines with IC50 values tinder the mu M level. (c) 2007 Elsevier Ltd. All rights reserved.