New chiral organosulfur donors related to bis(ethylenedithio)tetrathiafulvalene
作者:Songjie Yang、Andrew C. Brooks、Lee Martin、Peter Day、Melanie Pilkington、William Clegg、Ross W. Harrington、Luca Russo、John D. Wallis
DOI:10.1016/j.tet.2010.06.034
日期:2010.8
with structures related to BEDT-TTF, have been synthesised for use in the preparation of organic metals, starting either by double nucleophilic substitutions on the bis-mesylate of 2R,4R-pentane-2,4-diol or by a cycloaddition with subsequent elimination of acetic acid on the enol acetate of (+)-nopinone. Crystal structures of some of their radical cation triiodides salts and TCNQcomplexes are reported
Preparation of Campholenal Analogues: Chirons for the lipophilic moiety of sandalwood-like odorant alcohols
作者:Christian Chapuis、Robert Brauchli
DOI:10.1002/hlca.19920750507
日期:1992.8.13
In connection with structure-activityrelationship studies, analogues of campholenal ((+)-4b), an important building block for sandalwood-like odorants, were prepared. The five-membered-ring analogues 4 were obtained by epoxidation of the corresponding α-pinene derivatives 2, followed by catalytic ZnBr2 isomerisation (Scheme 2). The six-membered-ring skeleton was obtained by ozonolysis of α-campholenyl
Stereoselective syntheses of pinane-based 1,3-diamines and their application as chiral ligands in the enantioselective addition of diethylzinc to benzaldehyde
作者:Kinga Csillag、Zsolt Szakonyi、Ferenc Fülöp
DOI:10.1016/j.tetasy.2013.04.003
日期:2013.5
synthesized and applied as chiral catalysts in the addition of diethylzinc to benzaldehyde. The key intermediate β-lactam 2 was prepared regio- and stereoselectively from (−)-apopinene 1. The treatment of 2 with di-tert-butyl dicarbonate afforded N-Boc β-lactam 3, while acid-catalyzedringopening of 2 resulted in amino acid 4. Nucleophilic ringopening of 3 with dimethylamine, followed by deprotection
Regio- and stereoselective synthesis of constrained enantiomeric β-amino acid derivatives
作者:Zsolt Szakonyi、Tamás A. Martinek、Reijo Sillanpää、Ferenc Fülöp
DOI:10.1016/j.tetasy.2008.09.026
日期:2008.10
Chlorosulfonylisocyanate addition to (−)- and (+)-apopinene furnished monoterpene-fused β-lactams in highly regio- and stereospecific reactions. β-Lactams 5 and 13 exhibited reactivities similar to those of the cycloalkane-fused analogs and were easily converted to the β-amino acid and its protected derivatives. The base-catalyzed isomerization of the cis-amino ester afforded the corresponding trans-amino
[EN] 1,3-HETEROCYCLES CONDENSED WITH MONOTERPENE SKELETON, THEIR USE AND PHARMACEUTICAL COMPOSITIONS COMPRISING SUCH COMPOUNDS<br/>[FR] HÉTÉROCYCLES-1,3 CONDENSÉS AVEC UN SQUELETTE MONOTERPÉNIQUE, UTILISATION DE CEUX-CI ET COMPOSITIONS PHARMACEUTIQUES COMPRENANT DE TELS COMPOSÉS
申请人:BIOBLOCKS MAGYARORSZAG GYOGYSZ
公开号:WO2010070365A1
公开(公告)日:2010-06-24
The invention relates to chiral compounds with monoterpene skeleton of general formula (I) - where in the formula X stands for O or H2; W stands for O, S, N-R2 or Ph-R3; Y stands for O or N-R4; R1 stands for H, C1-4Alk or (C2)1-4-Ph; R2 stands for C1-4Alk or Ph-R3; R3 stands for H, C1-4Alk, C1-4Alk-O or Hlg; R4 stands for H or Ph; and one of the signs --- means the presence of a double bond and the other means the absense of a double bond, with the proviso that only one of W and Y may simultaneously stand for oxygen - as well as to their prodrugs and salts formed with pharmaceutically acceptable acids. Furthermore, the invention relates to cytostatic pharmaceutical compositions comprising one or more compounds of general formula (I) and usual inert pharmaceutical carriers and/or auxiliary agents, to the use of the compounds of general formula (I) for preparing cytostatic pharmaceutical compositions as well as to the treatment and/or curing of cancerous illnesses.