(+)-Dimericbiscognienyne A: Total Synthesis and Mechanistic Investigations of the Key Heterodimerization
作者:Geon Kim、Myungjo J. Kim、Garam Chung、Hee-Yoon Lee、Sunkyu Han
DOI:10.1021/acs.orglett.8b03025
日期:2018.11.2
The first totalsynthesis of (+)-dimericbiscognienyne A is described. Key to the successful access to (+)-dimericbiscognienyne A was a biosynthetically inspired Diels–Alder reaction between two differential epoxyquinoid monomers and the subsequent intramolecular hemiacetal formation. The selective formation of the natural product among other possible diastereomers during the late-stage [4+2] cycloaddition
Enantioselective formal synthesis of antitumor agent (+)-ottelione A
作者:Mi Young Lee、Kyung Hwa Kim、Shuai Jiang、Yoo Hyun Jung、Jae Yi Sim、Geum-Sook Hwang、Do Hyun Ryu
DOI:10.1016/j.tetlet.2008.01.108
日期:2008.3
The enantioselective formal synthesis of a natural antitumor product, (+)-ottelione A, was achieved through a catalytic enantioselective Diels–Alder strategy. These endeavors have led to the synthesis of a variety of synthetic analogues of this biologically potent natural product.
Total Synthsis of (+)-Ambuic Acid: α-Bromination with 1,2-Dibromotetrachloroethane
作者:Sun Hee Jung、Geum-Sook Hwang、Sung Il Lee、Do Hyun Ryu
DOI:10.1021/jo202357s
日期:2012.3.2
Total synthesis of (+)-ambuic acid has been accomplished from the readily available stereocontrolled Diels-Alder adduct of cyclopentadiene and iodo-1,4-benzoquinone monoketal through an efficient series of steps. A new method for the highly commendable synthesis of alpha-brominated Diels-Alder adduct is described.
Highly Efficient Synthesis of (+)-Bromoxone, (+)-Epiepoxydon and (+)-Epiepoformin