A two-step biomimetic synthesis of antimalarial robustadials A and B
摘要:
The antimalarial robustadials A and B have been synthesized in two steps starting from commercially available phloroglucinol comprising a key biomimetic three-component reaction that involves in situ generation of an o-quinone methide via Knoevenagel condensation and subsequent Diels-Alder cycloaddition with (-)-beta-pinene. @ 2006 Elsevier Ltd. All rights reserved.
An Efficient Two-Step Synthesis of Jensenone Isolated from Eucalyptus jensenii. Synthesis of Analogues and Evaluation as Antioxidants
作者:Sandip B. Bharate、Siddheshwar K. Chauthe、Kamlesh K. Bhutani、Inder P. Singh
DOI:10.1071/ch05061
日期:——
A phloroglucinol derivative, jensenone (1) isolated from leaves of Eucalyptus jensenii has been synthesized for the first time through a short and efficient two-step procedure starting from commercially available phloroglucinol. The methodology provides a simplified route to introduce diformyl moiety for synthesis of biologically active formylated phloroglucinol compounds such as antimalarial robustadials
作者:Douglas J. Boland、Joseph J. Brophy、Christopher J.R. Fookest
DOI:10.1016/0031-9422(92)80396-v
日期:1992.6
Jensenone, 4,6-diformyl-2-isopentanoylphloroglucinol, has been isolated from the steam volatile leaf oil of Eucalyptus jensenii. It comprises approximately 70% of the oil. Also present in the oil were small quantities of over 60 mono- and sesquiterpenes.