35183-82-5Relevant articles and documents
STEREOCONVERGENT METHOD FOR CONSTRUCTION OF THE ω-SIDE CHAIN OF PROSTAGLANDINS WITH 1-HEPTYNE AS SYNTHON
Mahrwald, R.,Theil, F.,Mel'nikova, V. I.,Schick, H.,Pivnitskii, K. K.
, p. 1481 - 1489 (2007/10/02)
A stereoconvergent method for the construction of the ω-chain by condensation with 1-heptyne, leading to the epimeric acetylenic alcohols, and by conversion of both epimers into the final product by similar schemes is described for the case of the synthesis of rac-11-deoxy-prostaglandin-E2 form the known prostaglandin synthon 3-methoxy-6-endo-formyl-2-oxabicyclooctane.Stereoconvergence is achieved by the use of the stereochemical relationships govering the isomerization of substituted acetates of cis- and trans-allyl alcohols catalyzed by palladium salts.
A new and unusually flexible route to cyclopentanoids synthesis of sarkomycin and prostaglandins
Misumi,Furuta,Yamamoto
, p. 671 - 674 (2007/10/02)
Combination of the dianion of dialky 3-hexenedioate and β-bromopropionate leads directly to a 2,3-disubstituted cyclopentanone, which can be transformed to a variety of primary prostaglandins and sarkomycin.
Organocuprate Conjugate-addition-Enolate-alkylation Reactions: A New Synthesis of 11-Deoxyprostaglandins
Dixon, Andrew J.,Taylor, Richard J. K.,Newton, Roger F.
, p. 1407 - 1410 (2007/10/02)
A short synthesis of a key 11-deoxyprostaglandin precursor, 6β--cis-α-2-oxabicyclooctan-3-one (11), is reported.Important reactions in the synthesis include preparation of 2α-allyl-3β-oct-1-enyl>cyclopentanone (4) by an organocuprate conjugate-addition-enolate-alkylation reaction, regiospecific epoxidation-cyclisation of the alcohol (7) to give 6β-oct-1-enil>-3-hydroxymethyl-cis-α-2-oxabicyclooctane (9), and oxidative degradation of (9) with manganese dioxide to give 6β-oct-1-enyl)-cis-α-2-oxabicyclooctan-3-one (10).
Novel compounds of the 11-deoxyprostaglandin E3, R3α, and F3β series
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, (2008/06/13)
This disclosure describes compounds of the 11-deoxyprostaglandin E2, F2α, F2β, E3, F3α, and F3β series having bronchodilator activity.