Výsledky vyhledávání - "David Díez-Martín"

Autor: Daniel Pérez, Marcos Servet, David Díez Martín

Publikováno v: GREDOS. Repositorio Institucional de la Universidad de Salamanca
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Advances in Distributed Computing and Artificial Intelligence Journal, Vol 7, Iss 4, Pp 27-34 (2019)

A multi-agent systems is described that analyzes texts from two points of view: on the one hand in a lexical and on the other in a semantic way. The main purpose of the system is the efficient processing of the inputted text in order to analyzing it,

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40e074aa6e99493144198557f025be70
http://hdl.handle.net/10366/141445

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Synthetic studies towards the clerodane insect antifeedant jodrellin A: preparation of a polycyclic model compound with antifeedant activity

Autor: Francis J. Montgomery, David Díez-Martín, Steven V. Ley, Ana C. Cuñat

Publikováno v: J. Chem. Soc., Perkin Trans. 1. :611-620

Synthetic studies towards the insect antifeedant jodrellin A 1a are reported. This work delineates a synthetic strategy that affords a polycyclic epoxy diacetate model compound 2 which contains most of the structural features found in the natural pro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e9a1d6b463b18623b0e56085018cf4ad
https://doi.org/10.1039/p19960000611

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Diterpenes with a valparane skeleton

Autor: Concepción Alonso, David Díez Martín, Isidro S. Marcos, Narciso M. Garrido, Anna M. Lithgow, Isabel M. Oliva, Pilar Basabe, Julio G. Urones

Publikováno v: Phytochemistry. 34:747-750

The components of the neutral part of the extract of Halimium viscosum , chemotype Villarino de los Aires, have been studied and the study of the co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5edfe92a2191dd618b9de87f830fde95
https://doi.org/10.1016/0031-9422(93)85352-r

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Valparane, a new diterpene skeleton (part iv). Absolute stereochemistry of valparone, valparolone and other compounds with valparane skeleton

Autor: Pilar Basabe, Concepción Alonso, David Díez Martín, Isabel M. Oliva, Narciso M. Garrido, Isidro S. Marcos, Julio G. Urones, Anna M. Lithgow

Publikováno v: Tetrahedron. 49:4051-4062

The unsaponificable part of the hexane extract of Halimium viscosum chemotype (Valparaiso, Zamora, Spain) afforded three hydrocarbons, an epoxide, a ketone (valparone), five allylic alcohols and a seco derivative with valparane skeleton and an α,β-

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c8887548b8e67af52097efa74d34adec
https://doi.org/10.1016/s0040-4020(01)89917-8

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ChemInform Abstract: Total Synthesis of the Anthelmintic Macrolide Avermectin B1a

Autor: Alexandra M. Z. Slawin, Andrew D. White, Steven V. Ley, David Díez-Martín, A. Madin, Julian G. Knight, Alan Armstrong, Craig A. Marby, Hartmuth C. Kolb, Peter Grice, Antony N. Shaw, David J. Williams, Sadie Vile, Martin Woods, Subhabrata Mukherjee, Mark J. Ford

Publikováno v: ChemInform. 22

A highly convergent total synthesis of the anthelmintic macrolide avermectin B1a 1 is described. The key features of this synthesis include the introduction of the C(11)–C(15) portion by selective ring opening of a symmetrical 1,4-bis-epoxide 4 fol

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7721a53cb2a627b77950a500f1be5d26
https://doi.org/10.1002/chin.199128240

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ChemInform Abstract: Chemistry of Labdanediol from Cistus ladaniferus, L. Synthesis of 12- Nor-ambreinolide and α- and β-Levantenolides

Autor: Pilar Basabe, M. H. Peral, Isidro S. Marcos, Julio G. Urones, M. J. Sexmero, Howard B. Broughton, David Díez Martín

Publikováno v: ChemInform. 24

Labdanediol, 2 , the major component of the neutral part of Cistus ladaniferus L, was transformed into 12- nor -ambreinolide, precursor of ambrox ® , in three steps with an overall yield of 70%. Molecular modelling techniques have been used to deter

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::526bc1a20ab15cc0eab6fbedeb90429b
https://doi.org/10.1002/chin.199309217

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