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Page 1
Xenicane Natural Products: Biological Activity and Total Synthesis.
Betschart L, Altmann KH. Betschart L, et al. Curr Pharm Des. 2015;21(38):5467-88. doi: 10.2174/1381612821666151002112607. Curr Pharm Des. 2015. PMID: 26429717 Review.
The xenicanes are a large class of mostly bicyclic marine diterpenoids featuring a cyclononane ring as a common structural denominator. After a brief introduction into the characteristic structural features of xenicanes and some biogenetic considerations, the major focus o …
The xenicanes are a large class of mostly bicyclic marine diterpenoids featuring a cyclononane ring as a common structural denominato …
Dynamics of flexible cycloalkanes. Ab initio and DFT study of the conformational energy hypersurface of cyclononane.
Suvire FD, Santagata LN, Bombasaro JA, Enriz RD. Suvire FD, et al. J Comput Chem. 2006 Jan 30;27(2):188-202. doi: 10.1002/jcc.20328. J Comput Chem. 2006. PMID: 16323160
The multidimensional Potential Energy Hypersurface (PEHS) for the cyclononane molecule was comprehensively investigated at the Hartree-Fock (HF), and Density Functional Theory (DFT) levels of theory. ...Our results allow us to form a concise idea about the internal intrica …
The multidimensional Potential Energy Hypersurface (PEHS) for the cyclononane molecule was comprehensively investigated at the Hartre …
Purification of a recombinant human growth hormone by an integrated IMAC procedure.
Mooney JT, Fredericks DP, Zhang C, Christensen T, Jespergaard C, Schiødt CB, Hearn MT. Mooney JT, et al. Protein Expr Purif. 2014 Feb;94:85-94. doi: 10.1016/j.pep.2013.11.002. Epub 2013 Nov 22. Protein Expr Purif. 2014. PMID: 24275639
To this end, novel N-terminally tagged human growth hormone variants (tagged-vhGHs) have been expressed in E. coli by tank fermentation and captured directly from the cell lysate by a new IMAC approach. The chelating ligands used were 1,4,7-triaza-cyclononane (tacn) and bi …
To this end, novel N-terminally tagged human growth hormone variants (tagged-vhGHs) have been expressed in E. coli by tank fermentation and …
The C7-C10 cycloalkanes revisited.
Wiberg KB. Wiberg KB. J Org Chem. 2003 Nov 28;68(24):9322-9. doi: 10.1021/jo030227n. J Org Chem. 2003. PMID: 14629153
The latter is in agreement with the electron diffraction data. With cyclononane, B3LYP predicts that two of the higher-energy conformers found in molecular mechanics calculations should convert to one of the lower-energy conformers. ...
The latter is in agreement with the electron diffraction data. With cyclononane, B3LYP predicts that two of the higher-energy conform …
Protoxenicins A and B, Cytotoxic Long-Chain Acylated Xenicanes from the Soft Coral Protodendron repens.
Urda C, Fernández R, Pérez M, Rodríguez J, Jiménez C, Cuevas C. Urda C, et al. J Nat Prod. 2017 Mar 24;80(3):713-719. doi: 10.1021/acs.jnatprod.7b00046. Epub 2017 Mar 3. J Nat Prod. 2017. PMID: 28256841
Furthermore, the absolute configuration of the stereogenic centers of the cyclononane ring and at C-1 in 1 was determined by Mosher's method. ...
Furthermore, the absolute configuration of the stereogenic centers of the cyclononane ring and at C-1 in 1 was determined by Mosher's …
Poly(N-4-vinylbenzyl-1,4,7-triazacyclononane) Copper Complex Grafted Solid Catalyst for Oxidative Polymerization of 2,6-Dimethylphenol.
Saito K, Miyamoto K, Nanayakkara S, Ihara H, Hearn MT. Saito K, et al. Molecules. 2016 Jan 26;21(2):146. doi: 10.3390/molecules21020146. Molecules. 2016. PMID: 26821005 Free PMC article.
The solid catalyst was synthesized by first grafting N-(4-vinylbenzyl)-1,4,7-triaza-cyclononane onto polystyrene particles using a radical mediated polymerization method and next by creating the polymer-metal complex of copper-triazacyclononane with these modified particle …
The solid catalyst was synthesized by first grafting N-(4-vinylbenzyl)-1,4,7-triaza-cyclononane onto polystyrene particles using a ra …
Radiochemical and radiopharmacological characterization of a 64 Cu-labeled α-MSH analog conjugated with different chelators.
Gao F, Sihver W, Bergmann R, Walther M, Stephan H, Belter B, Neuber C, Haase-Kohn C, Bolzati C, Pietzsch J, Pietzsch HJ. Gao F, et al. J Labelled Comp Radiopharm. 2019 Jun 30;62(8):495-509. doi: 10.1002/jlcr.3728. Epub 2019 Jun 17. J Labelled Comp Radiopharm. 2019. PMID: 30912594
Hence, the alpha-MSH-derived peptide NAP-NS1 with a beta-Ala linker (epsilon-Ahx-beta-Ala-Nle-Asp-His-D-Phe-Arg-Trp-Gly-NH(2) ) was conjugated to different chelators: either to NOTA (p-SCN-Bn-1,4,7-triazacyclononane-1,4,7-triacetic acid), to a hexadentate bispidine carbonate deri …
Hence, the alpha-MSH-derived peptide NAP-NS1 with a beta-Ala linker (epsilon-Ahx-beta-Ala-Nle-Asp-His-D-Phe-Arg-Trp-Gly-NH(2) ) was conjugat …
Total synthesis, molecular editing and evaluation of a tripyrrolic natural product: the case of "butylcycloheptylprodigiosin".
Fürstner A, Radkowski K, Peters H, Seidel G, Wirtz C, Mynott R, Lehmann CW. Fürstner A, et al. Chemistry. 2007;13(7):1929-45. doi: 10.1002/chem.200601639. Chemistry. 2007. PMID: 17225234
Conflicting reports are found in the literature on whether the ortho-pyrrolophane derivative 6, which has been named "butylcycloheptylprodigiosin" even though it is a cyclononane derivative, is a natural product or merely a mis-assigned structure. ...This structural modifi …
Conflicting reports are found in the literature on whether the ortho-pyrrolophane derivative 6, which has been named "butylcycloheptylprodig …
3,3,6,6,9,9-Hexaethyl-1,2,4,5,7,8-hexaoxacyclononane at 296 K.
Cerna J, Bernès S, Cañizo A, Eyler N. Cerna J, et al. Acta Crystallogr C. 2009 Nov;65(Pt 11):o562-4. doi: 10.1107/S0108270109039833. Epub 2009 Oct 7. Acta Crystallogr C. 2009. PMID: 19893236
DEKTP crystallizes with two molecules in the asymmetric unit, with virtually identical geometry. The cyclononane core is stabilized in a twisted boat-chair conformation (approximate D(3) symmetry), very close to that previously described for TATP. ...
DEKTP crystallizes with two molecules in the asymmetric unit, with virtually identical geometry. The cyclononane core is stabilized i …
Collective synthesis of Lycopodium alkaloids and tautomer locking strategy for the total synthesis of (-)-lycojapodine A.
Li H, Wang X, Hong B, Lei X. Li H, et al. J Org Chem. 2013 Feb 1;78(3):800-21. doi: 10.1021/jo3017555. Epub 2012 Sep 20. J Org Chem. 2013. PMID: 22973823
An intramolecular C-alkylation enabled efficient installation of the challenging spiro quaternary carbon center and the aza-cyclononane ring. The preparation of the tricyclic skeleton as well as the establishment of the correct relative stereochemistry of the oxa-quaternar …
An intramolecular C-alkylation enabled efficient installation of the challenging spiro quaternary carbon center and the aza-cyclononane …
20 results