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Gabriel De La Fuente - One of the best experts on this subject based on the ideXlab platform.

  • seven new norditerpenoid alkaloids from spanish Consolida orientalis
    ChemInform, 2005
    Co-Authors: Alenguer Alva, Maritza Grandez, Alberto Madinaveitia, Gabriel De La Fuente, Jose A Gavin
    Abstract:

    Seven new norditerpenoid alkaloids named 1-O-demethyltricornine (1), 14-O-benzoyltakaosamine (2), 1-O,19-didehydrotakaosamine (3), 14-O-demethyldelboxine (4), all belonging to the lycoctonine-type alkaloids, and 8-O-methylconsolarine (5), 14-O-deacetylpubescenine (6), and 18-O-benzoyl-14-O-deacetyl-18-O-demethylpubescenine (7), these belonging to the rare group of the 6-epilycoctonine-type alkaloids, were isolated from the aerial parts of Consolida orientalis (Gay) Schrod. The structures of the new compounds were elucidated by 1D- and 2D-NMR and HR-EI-MS. Moreover, 37 known norditerpenoid alkaloids (lycoctonine-type) were isolated and identified by comparing their spectral data with those reported in the literature.

  • three new norditerpenoid alkaloids from Consolida orientalis
    Chemical & Pharmaceutical Bulletin, 2004
    Co-Authors: Alenguer Alva, Maritza Grandez, Alberto Madinaveitia, Gabriel De La Fuente, Jose Gavin
    Abstract:

    The structures of three new norditerpenoid alkaloids named dehydrodeltatsine (1), 14-O-acetyltakaosamine (2), 18-demethoxypubescenine (3) isolated from the aerial parts of Consolida orientalis (GAY) SCHROD., were elucidated by 1D and 2D NMR spectroscopy and HR-EIMS. Twelve known norditerpenoid alkaloids (type lycoctonine) and the diterpenoid alkaloid ajaconine have been isolated. Several assignments of 1 3 C-NMR data for delbonine (4) were revised and the complete assignment for 18-hydroxy-14-O-methylgadesine (5) was realized.

  • alkaloids from Consolida oliveriana
    Journal of Natural Products, 2002
    Co-Authors: Maritza Grandez, Alberto Madinaveitia, Jose A Gavin, And Allenger Alva, Gabriel De La Fuente
    Abstract:

    Four new diterpenoid alkaloids, olivimine (1), olividine (2), 8-O-methylcolumbianine (3), and 7α-hydroxycossonidine (4), were isolated from the aerial parts of Consolida oliveriana. Compounds 1 and 2, 3, and 4 belong to the lycoctonine-azomethine, aconitine, and hetisine types, respectively, and their structures were elucidated by spectral data interpretation.

  • four new alkaloids from Consolida glandulosa
    Journal of Natural Products, 2002
    Co-Authors: Lastenia Ruizmesia, Alberto Madinaveitia, Gabriel De La Fuente, Matias Reina, Matias L Rodriguez, Wilfredo Ruizmesia
    Abstract:

    The structures of four new hetisine-type diterpenoids, 9-deoxyglanduline (1), glandulosine (2), 11,13-O-diacetylglanduline (3), and 9-O-acetylglanduline (4), isolated from Consolida glandulosa, were determined by two-dimensional NMR techniques. All the structures of these compounds were substantiated by a single-crystal X-ray analysis performed on compound 3.

  • five diterpenoid alkaloids from Consolida glandulosa
    Phytochemistry, 1997
    Co-Authors: Giovanna R Almanza, Jaume Bastida, Carles Codina, Gabriel De La Fuente
    Abstract:

    Abstract Five new hetisine-type diterpenoid alkaloids, 11,13- O -diacetyl-9-deoxyglanduline, 13- O -acetyl-9-deoxyglanduline, 14- O -acetyl-9-deoxyglanduline, 13- O -acetyl-glanduline and glanduline, were isolated from Consolida glandulosa . The structures of the new alkaloids were determined mainly by NMR spectroscopy, 1 H COSY, HMQC, HMBC and ROESY.

Tomasz Rewicz - One of the best experts on this subject based on the ideXlab platform.

  • morphological variability of Consolida regalis seeds of south eastern and central europe
    Systematics and Biodiversity, 2017
    Co-Authors: Agnieszka Rewicz, Anna Bomanowska, Joanna Magda, Tomasz Rewicz
    Abstract:

    The aim of the paper was to analyse the morphological variability of Consolida regalis Gray (common name Forking Larkspur) seeds in populations derived from different geographic origins. A review of available literature showed scarcity of data on seed sizes and a complete lack of information describing the morphological variation of C. regalis seeds in the geographic gradient. Therefore, the main aim of the study was to analyse the morphological variability of C. regalis seeds from south-eastern and central Europe. Larkspur seeds, collected during expeditions spanning 2012–2014 from 29 sites located in Bulgaria, Romania, Moldova and Poland, were the study material. Four biometric traits were analysed, that is, the length, the width, the perimeter and the area of the seeds. The pictures of the surface structure and sculpture of the seeds were made using the scanning electron microscope (SEM). The results showed differences in biometric traits and the seed sculpture across the latitudinal transect. There wa...

  • Morphological variability of Consolida regalis seeds of south-eastern and central Europe
    2016
    Co-Authors: Agnieszka Rewicz, Anna Bomanowska, Joanna Magda, Tomasz Rewicz
    Abstract:

    The aim of the paper was to analyse the morphological variability of Consolida regalis Gray (common name Forking Larkspur) seeds in populations derived from different geographic origins. A review of available literature showed scarcity of data on seed sizes and a complete lack of information describing the morphological variation of C. regalis seeds in the geographic gradient. Therefore, the main aim of the study was to analyse the morphological variability of C. regalis seeds from south-eastern and central Europe. Larkspur seeds, collected during expeditions spanning 2012–2014 from 29 sites located in Bulgaria, Romania, Moldova and Poland, were the study material. Four biometric traits were analysed, that is, the length, the width, the perimeter and the area of the seeds. The pictures of the surface structure and sculpture of the seeds were made using the scanning electron microscope (SEM). The results showed differences in biometric traits and the seed sculpture across the latitudinal transect. There was a trend observed of an increase in the length, the width, the perimeter and the area of the seeds towards the northern border of the geographic species range. Besides the geographic factor, the morphological variation of larkspur seeds was affected by environmental conditions (mainly temperature) in which plants grew and availability of habitat resources.

Agnieszka Rewicz - One of the best experts on this subject based on the ideXlab platform.

  • morphological variability of Consolida regalis seeds of south eastern and central europe
    Systematics and Biodiversity, 2017
    Co-Authors: Agnieszka Rewicz, Anna Bomanowska, Joanna Magda, Tomasz Rewicz
    Abstract:

    The aim of the paper was to analyse the morphological variability of Consolida regalis Gray (common name Forking Larkspur) seeds in populations derived from different geographic origins. A review of available literature showed scarcity of data on seed sizes and a complete lack of information describing the morphological variation of C. regalis seeds in the geographic gradient. Therefore, the main aim of the study was to analyse the morphological variability of C. regalis seeds from south-eastern and central Europe. Larkspur seeds, collected during expeditions spanning 2012–2014 from 29 sites located in Bulgaria, Romania, Moldova and Poland, were the study material. Four biometric traits were analysed, that is, the length, the width, the perimeter and the area of the seeds. The pictures of the surface structure and sculpture of the seeds were made using the scanning electron microscope (SEM). The results showed differences in biometric traits and the seed sculpture across the latitudinal transect. There wa...

  • Morphological variability of Consolida regalis seeds of south-eastern and central Europe
    2016
    Co-Authors: Agnieszka Rewicz, Anna Bomanowska, Joanna Magda, Tomasz Rewicz
    Abstract:

    The aim of the paper was to analyse the morphological variability of Consolida regalis Gray (common name Forking Larkspur) seeds in populations derived from different geographic origins. A review of available literature showed scarcity of data on seed sizes and a complete lack of information describing the morphological variation of C. regalis seeds in the geographic gradient. Therefore, the main aim of the study was to analyse the morphological variability of C. regalis seeds from south-eastern and central Europe. Larkspur seeds, collected during expeditions spanning 2012–2014 from 29 sites located in Bulgaria, Romania, Moldova and Poland, were the study material. Four biometric traits were analysed, that is, the length, the width, the perimeter and the area of the seeds. The pictures of the surface structure and sculpture of the seeds were made using the scanning electron microscope (SEM). The results showed differences in biometric traits and the seed sculpture across the latitudinal transect. There was a trend observed of an increase in the length, the width, the perimeter and the area of the seeds towards the northern border of the geographic species range. Besides the geographic factor, the morphological variation of larkspur seeds was affected by environmental conditions (mainly temperature) in which plants grew and availability of habitat resources.

Haridutt K Desai - One of the best experts on this subject based on the ideXlab platform.

A H Mericli - One of the best experts on this subject based on the ideXlab platform.