Synthetic studies towards phomactin A. Concise synthesis of the novel tricyclic furanochroman system
作者:Kevin M. Foote、Christopher J. Hayes、Gerald Pattenden
DOI:10.1016/0040-4039(95)02148-5
日期:1996.1
A concisesynthesis of the tricyclic furanochroman unit 2 found in the unusual PAF antagonist phomactin A 1 is described. The synthesis is based on elaboration of the novel dihydrofuran enol ether 3 as key intermediate via the iodopyran 6 or the dihydrofuran 20. Treatment of 3 with dimethyldioxirane in acetone-water then gave the furanochroman 2.
描述了在不寻常的PAF拮抗剂phomactin A 1中发现的三环呋喃并呋喃喃单元2的简明合成。该合成基于经由碘吡喃6或二氢呋喃20的新型二氢呋喃烯醇醚3作为关键中间体的加工。然后在丙酮-水中用二甲基二环氧乙烷处理3,得到呋喃并二氢呋喃2。
Synthetic studies towards the phomactins. Concise syntheses of the tricyclic furanochroman and the oxygenated bicyclo[9.3.1]pentadecane ring systems in phomactin A
作者:Kevin M Foote、Christopher J Hayes、Matthew P John、Gerald Pattenden
DOI:10.1039/b307985f
日期:——
A concise synthesis of the tricyclic furanochroman unit 3 found in the PAF antagonist phomactin A (1) isolated from the marine fungus Phoma sp., is described. In complementary studies, a variety of synthetic routes towards the bicyclo[9.3.1]pentadecaneringsystem 4 in phomactin A were explored. These studies culminated in a synthesis of the substituted ringsystem 79 containing all the carbon atoms