Lasonolide A: Structural Revision and Total Synthesis
作者:Ho Young Song、Jung Min Joo、Jung Won Kang、Dae-Shik Kim、Cheol-Kyu Jung、Hyo Shin Kwak、Jin Hyun Park、Eun Lee、Chang Yong Hong、ShinWu Jeong、Kiwan Jeon、Ji Hyun Park
DOI:10.1021/jo034930n
日期:2003.10.1
The proposed structure of lasonolide A was synthesized employing radical cyclization reactions of beta-alkoxyacrylates for preparation of the tetrahydropyranyl units A and B, but the spectroscopic data did not match those of the natural product. Both enantiomers of a revised structure featuring 17E,25Z double bonds were synthesized, and the (-)-isomer was found to be the biologically active enantiomer.
Lasonolide A: Structural Revision and Synthesis of the Unnatural (−)-Enantiomer
作者:Eun Lee、Ho Young Song、Jung Won Kang、Dae-Shik Kim、Cheol-Kyu Jung、Jung Min Joo
DOI:10.1021/ja017265d
日期:2002.1.1
Total synthesis of the unnatural (-)-enantiomer of lasonolide A was achieved starting from ethyl l-malate. The two tetrahydropyranyl fragments were prepared stereoselectively via radical cyclization reactions of beta-alkoxyacrylates. The full structure of natural lasonolide A was determined unequivocally.
Synthesis and evaluation of lasonolide A analogues
作者:Jung Min Joo、Hyo Shin Kwak、Jin Hyun Park、Ho Young Song、Eun Lee
DOI:10.1016/j.bmcl.2004.01.088
日期:2004.4
Homolasonolide A and 10-desmethyllasonolide A are biologically less active than lasonolide A. The ethyl ester analogue of lasonolide A exhibited higher activity than the parent compound in some biological test. (C) 2004 Elsevier Ltd. All rights reserved.