Zobrazeno 1 - 10
of 231
pro vyhledávání: '"J.G. Urones"'
Autor:
Araceli Blanco, María J. Martín, J.G. Urones, Isidro S. Marcos, David Díez, Olga Bodero, Pilar Basabe
Publikováno v:
Tetrahedron. 67:3649-3658
Two different strategies for the synthesis of spongidines A and D are presented. Herein we describe a route based in an amino acid insertion followed by aromatization. Another alternative is the construction of a pyridine derivative followed by N-alk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::061875b6267c59a00bc1b90013868289
https://doi.org/10.1016/j.tet.2011.03.084
https://doi.org/10.1016/j.tet.2011.03.084
Publikováno v:
Tetrahedron. 66:8605-8614
This paper describes the use of zamoranic acid in the first semisynthesis of the furolabdane (+)-angeloyl-gutierrezianolic acid methyl ester diterpenoid, which also establishes the absolute configuration of the natural product. Direct deconjugation o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::197962e425d193088315409b1c31b9da
https://doi.org/10.1016/j.tet.2010.09.051
https://doi.org/10.1016/j.tet.2010.09.051
Publikováno v:
Tetrahedron. 66:8280-8290
ent-Halimic acid has been used in the synthesis of the quinone/hydroquinone sesquiterpenes (−)-aureol, (−)-smenoqualone, (−)-neomamanuthaquinone and in the formal synthesis of (−)-cyclosmenospongine.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::669200bbd769b969418d62c14af6439d
https://doi.org/10.1016/j.tet.2010.08.038
https://doi.org/10.1016/j.tet.2010.08.038
Publikováno v:
Tetrahedron. 66:7773-7780
This paper describes the use of (−)-sclareol in the synthesis of the tricyclic diterpenes of abietane skeleton, such as (+)-ferruginol and (+)-sugiol, using as key step the lateral lithiation of a dinorditerpene derivative.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a6949f252e4b810f5a48f433b6ad271
https://doi.org/10.1016/j.tet.2010.07.066
https://doi.org/10.1016/j.tet.2010.07.066
Autor:
Pilar Basabe, Araceli Blanco, David Díez, J.G. Urones, Olga Bodero, María J. Martín, Isidro S. Marcos
Publikováno v:
Tetrahedron. 66:6008-6012
Description of the first synthesis of (+)-makassaric acid, an important kinase MK2 inhibitor. The key step was a Barton/McCombie radical deoxygenation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ce94167583881c1fa8fb1a9e26db1eff
https://doi.org/10.1016/j.tet.2010.06.023
https://doi.org/10.1016/j.tet.2010.06.023
Autor:
María J. Martín, Isidro S. Marcos, Pilar Basabe, Faustino Mollinedo, Olga Bodero, J.G. Urones, Araceli Blanco, David Díez
Publikováno v:
Digital.CSIC. Repositorio Institucional del CSIC
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Herein, the synthesis of 4-methyldecarboxyhaumanamide (9) and 4-methyldecarboxyspongolactams A (11) and C (13) is presented. (-)-Sclareol is the starting material and the chloroderivative 7 is the common intermediate. Moreover, this synthesis represe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a5ff14826d7a1698995a07fcf33e08c
https://doi.org/10.1016/j.tet.2010.01.091
https://doi.org/10.1016/j.tet.2010.01.091
Autor:
J.G. Urones, Pilar Basabe, David Díez, Mónica de Román, Francisca Sanz, Isidro S. Marcos, Alberto Diego, Sergio Delgado
Publikováno v:
Tetrahedron. 63:8939-8948
A nor-limonoid with a γ-hydroxybutenolide group was obtained starting from the known methyl isoanticopalate. A new route for the synthesis of several lactones with a homoisoanticopalane skeleton has been opened. The stereochemistry of three intermed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dbdc457d87ee6fc7478035b5ce55009f
https://doi.org/10.1016/j.tet.2007.06.004
https://doi.org/10.1016/j.tet.2007.06.004
Autor:
F. A. Hernandez, Pilar Basabe, J.G. Urones, David Díez, Isidro S. Marcos, M. J. Sexmero, Miguel A. Escola, N. Garcia
Publikováno v:
Tetrahedron. 63:2335-2350
An advanced intermediate 40 with the ABC ring of the picrasane quassinoid skeleton has been synthesised from ent-halimic acid. The bicyclic system of the starting material has been incorporated as the BC part of the ABC system. Until date, no diterpe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bbe9aca261c0712f47c68ee4f7375d8
https://doi.org/10.1016/j.tet.2006.12.054
https://doi.org/10.1016/j.tet.2006.12.054
Autor:
Pilar Basabe, Rosalina F. Moro, Howard B. Broughton, Isidro S. Marcos, David Díez, Narciso M. Garrido, Pablo A. García, M. Jose Gil, J.G. Urones
Publikováno v:
Tetrahedron. 63:740-747
A new chiral organocatalyst is described in this paper. A new mechanism for the overall Michael condensation of ketones with nitroolefins using our catalyst is suggested based on molecular modelling studies.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::253c41a3bf4182db93673339a042ea36
https://doi.org/10.1016/j.tet.2006.10.083
https://doi.org/10.1016/j.tet.2006.10.083
Publikováno v:
Synthesis. 2006:3865-3873
ent-Halimic acid was used as the starting material for an efficient synthesis of a series of tetranor derivatives, functionalized at C-18. These compounds could be used to synthesise [4.3.3]propellanes, oxides and lactones similar to ambreinolide, al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c7651979a79c60be88f449ba604056c3
https://doi.org/10.1055/s-2006-950300
https://doi.org/10.1055/s-2006-950300