Synthesis and Absolute Configuration of (−)-3-Butyl-7-hydroxyphthalide, a Cytotoxic Metabolite of<i>Penicillium vulpinum</i>*
作者:Tomoya OHZEKI、Kenji MORI
DOI:10.1271/bbb.67.2240
日期:2003.1
Both the enantiomers as well as the racemate of 3-butyl-7-hydroxyphthalide (1) were synthesized, and the absolute configuration of the naturally occurring (−)-1 (a weakly cytotoxic metabolite of Penicillium vulpinum) was identified as S.
[EN] MACROCYCLES CONTAINING A 1,3,4-OXADIAZOLE RING FOR USE AS MODULATORS OF CYSTIC FIBROSIS TRANSMEMBRANE CONDUCTANCE REGULATOR<br/>[FR] MACROCYCLES CONTENANT UN CYCLE 1,3,4-OXADIAZOLE DESTINÉS À ÊTRE UTILISÉS EN TANT QUE MODULATEURS DU RÉGULATEUR DE LA CONDUCTANCE TRANSMEMBRANAIRE DE LA FIBROSE KYSTIQUE
申请人:VERTEX PHARMA
公开号:WO2022109573A1
公开(公告)日:2022-05-27
This disclosure provides modulators of Cystic Fibrosis Transmembrane Conductance Regulator (CFTR), pharmaceutical compositions containing at least one such modulator, methods of treatment of cystic fibrosis using such modulators and pharmaceutical compositions, and processes for making such modulators.
A convergent total synthesis of (-)-apicularen A, a highly cytostatic 12-membered macrolide, has been accomplished. The key steps include assembling of iodoalkene 8 and aldehyde 9 by Nozaki-Hiyama-Kishi (NHK) coupling, stereospecific construction of 2,6-trans-disubstituted dihydropyran by Pd(II)-catalyzed 1,3-chirality transfer reaction, and Yamaguchi macrolactonization. Introduction of the (2Z,42)-heptadienamide moiety in the side chain by an efficient Cu(I)-mediated coupling completed the total synthesis.