Results 11 to 20 of about 7,735,886 (346)

Collection on clinical total-body-PET studies [PDF]

open access: bronzeEuropean Journal of Nuclear Medicine and Molecular Imaging, 2023
Riemer H. J. A. Slart, Axel Rominger
openalex   +3 more sources

Collection on total-body PET

open access: yesEJNMMI Physics, 2023
Kuangyu Shi, Charalampos Tsoumpas
doaj   +4 more sources

Total Cost of Stewardship: Responsible Collection Building in Archives and Special Collections

open access: gold, 2021
Chela Scott Weber   +4 more
openalex   +3 more sources

Collective Asymmetric Total Synthesis of Cylindricines

open access: yesOrganic Letters, 2023
Collective asymmetric total synthesis of marine tricyclic alkaloids, cylindricines A–H, and the proposed structures of cylindricine I and J, was achieved in a concise manner from a single common spirocyclic pyrrolidine intermediate. A tandem chemoselective oxidation/intramolecular aza-Michael addition/epimerization was exploited to complete the ...
Ryohei Hanzawa, Haruhiko Fuwa
openaire   +2 more sources

Collective Total Synthesis of PPAPs: Total Synthesis of Clusianone via Intramolecular Cyclopropanation [PDF]

open access: yesNatural Product Communications, 2013
The total synthesis of clusianone was accomplished through the stereoselective construction of a bicyclo[3.3.1]nonane derivative via a three-step sequence which has been utilized for the total syntheses of nemorosone garsubellin A and hyperforin: intramolecular cyclopropanation formation of a geminal dimethyl group and regioselective ring opening of ...
Masahiro, Uwamori, Masahisa, Nakada
openaire   +2 more sources

Collective Total Synthesis of 4‐Azafluorenone Alkaloids

open access: yesEuropean Journal of Organic Chemistry, 2023
Abstract4‐Azafluorenones are typically obtained by acid‐mediated cyclization of 2‐arylnicotinates. However, this approach fails to give 5‐oxygenated 4‐azafluorenones due to lactonization of 2‐(2‐alkoxy)phenylnicotinate intermediates. Herein, we report two modifications of established approaches to 4‐azafluorenone synthesis that, either in combination ...
Ilya A. P. Jourjine, Franz Bracher
openaire   +2 more sources

Collective total syntheses of cytochalasans and merocytochalasans

open access: yesTetrahedron Chem, 2022
Cytochalasans are an important class of fungal metabolites displaying remarkable structural diversity and significant biological activity. Historically, considerable effort has been devoted toward the synthesis of cytochalasans. Comparably, merocytochalasans, an array of more complicated molecules biosynthetically derived from cytochalasans and ...
Haoyu Zhang   +4 more
openaire   +2 more sources

Spiders (Araneae) from Agricultural fields near foothill of Satpura Mountain ranges of Amravati District, Maharashtra, India. [PDF]

open access: yes, 2011
This paper deals with the study of spider distribution in agricultural fields adjoining the Satpura Mountain Ranges of the Amravati district. The total collection of spiders comprises 12 families, 37 genera and 76 species.
Anil J. Gaur   +5 more
core   +2 more sources

Composição química e energética de alimentos de origem vegetal determinada em aves de diferentes idades Chemical and energetic composition of feedstuffs of plant origin for poultry at different ages

open access: yesRevista Brasileira de Zootecnia, 2010
Foram realizados quatro ensaios para determinar a energia metabolizável aparente (EMA) e a energia metabolizável aparente corrigida pelo balanço de nitrogênio (EMAn) de dez alimentos de origem vegetal para aves em diversas idades.
Arele Arlindo Calderano   +5 more
doaj   +1 more source

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