Cyclopentanones. X A novel synthesis of (dl)-prostaglandin F1α
摘要:
AbstractA novel total synthesis of (dl)‐prostaglandin F1α methyl ester is described. The 2,3‐dialkyl‐1,4‐cyclopentanediol system is obtained by the reduction of an appropriate 2,3‐dialkyl‐4‐hydroxy‐2‐cyclopentenone. The facile conversion of the most abundant isomeric cyclopentanediol, with the all trans relation of the four substituents to a δ‐lactone enables the creation of the required prostaglandin configuration and the construction of the C‐12 side chain. Extensive spectroscopic data are included.
Cyclopentanones. X A novel synthesis of (dl)-prostaglandin F1α
摘要:
AbstractA novel total synthesis of (dl)‐prostaglandin F1α methyl ester is described. The 2,3‐dialkyl‐1,4‐cyclopentanediol system is obtained by the reduction of an appropriate 2,3‐dialkyl‐4‐hydroxy‐2‐cyclopentenone. The facile conversion of the most abundant isomeric cyclopentanediol, with the all trans relation of the four substituents to a δ‐lactone enables the creation of the required prostaglandin configuration and the construction of the C‐12 side chain. Extensive spectroscopic data are included.
Cyclopentanones; XV<sup>1</sup>. Synthesis of 1-Alkyl (or Aryl)-2-hydroxy-3-oxocyclopentenes and of 1-Alkyl (or Aryl)-3,5-dioxocyclopentenes
作者:W. VAN BRUSSEL、M. VANDEWALLE
DOI:10.1055/s-1976-23951
日期:——
Cyclopentanones XIV. The synthesis of a prostanoid synthon starting from 3-alkyl-1,2,4-cyclopentanetriones
作者:W. van Brussel、J. van Hooland、P. De Clercq、M. Vandewalle
DOI:10.1002/bscb.19750840803
日期:——
Abstract3‐Alkyl‐1,2,4‐cyclopentanetriones can readily be converted to all trans 2,3‐dialkyl‐1,4‐cyclopentanediols. The latter compounds are intermediates for the synthesis of a prostanoid synthon, known as Corey's lactone, when the alkyl substituents contain appropriate functional groups. The conversion of two different sets of side‐chains to readily distinguishable two‐carbon and one‐carbon aldehyde units is described. Extensive 1H‐NMR data are included.
Cyclopentanones. X A novel synthesis of (dl)-prostaglandin F1α
作者:P. De Clercq、M. Vandewalle
DOI:10.1002/bscb.19740830714
日期:——
AbstractA novel total synthesis of (dl)‐prostaglandin F1α methyl ester is described. The 2,3‐dialkyl‐1,4‐cyclopentanediol system is obtained by the reduction of an appropriate 2,3‐dialkyl‐4‐hydroxy‐2‐cyclopentenone. The facile conversion of the most abundant isomeric cyclopentanediol, with the all trans relation of the four substituents to a δ‐lactone enables the creation of the required prostaglandin configuration and the construction of the C‐12 side chain. Extensive spectroscopic data are included.