Zobrazeno 1 - 10
of 161
pro vyhledávání: '"J. Stephen Clark"'
Autor:
J. Stephen Clark, Michael Popadynec
Publikováno v:
Toxins, Vol 12, Iss 12, p 740 (2020)
The I–L ring system found in all the Pacific ciguatoxins has been prepared from a tricyclic precursor in a highly stereoselective manner. Subtle differences in the reactivity of the enones present in the seven- and eight-membered rings of the tricy
Externí odkaz:
https://doaj.org/article/c0658366520a4175a5e947023899477a
Publikováno v:
Molecules, Vol 24, Iss 14, p 2654 (2019)
A new and direct approach to the construction of the core framework of the herbicidal natural products cornexistin and hydroxycornexistin has been developed. Formation of the nine-membered carbocycle found in the natural products has been accomplishe
Externí odkaz:
https://doaj.org/article/4c95fe338d0140d683bc49518da90480
Publikováno v:
Journal of Agricultural and Resource Economics, Vol 28, Iss 1, Pp 53-70 (2003)
When elementary prices move strictly proportionately, aggregation over a group of diverse products is valid, and group demand responses can be decomposed into quality and quantity responses. This study shows that when relative elementary prices and g
Externí odkaz:
https://doaj.org/article/6d9be8220c3a47d5adb432df8ccceeb7
Publikováno v:
Canadian Journal of Agricultural Economics/Revue canadienne d'agroeconomie. 71:153-169
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ea82a0669123a4546afe7ae53ce7713
https://doi.org/10.1111/cjag.12331
https://doi.org/10.1111/cjag.12331
Publikováno v:
Food Security. 14:1143-1157
Climate change has renewed interest in the production capacity of agriculture. Few researchers paid attention to price policy and heteroscedasticity in yield model. We incorporate rice price policy into the yield model at the expected price using a T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b421dbbdd30642c006e387de88fe7c13
https://doi.org/10.1007/s12571-021-01253-w
https://doi.org/10.1007/s12571-021-01253-w
Publikováno v:
Organic Letters
A novel four-step bidirectional strategy has been used to synthesize the IJK fragment of the marine polyether natural product CTX3C from a simple monocyclic precursor in a concise and efficient manner. The four-step bidirectional sequence involves ri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e91fc538534040fee821f68e9641b850
https://eprints.gla.ac.uk/214094/1/214094.pdf
https://eprints.gla.ac.uk/214094/1/214094.pdf
Autor:
Kirsten McAulay, J. Stephen Clark
Publikováno v:
Chemistry - A European Journal. 23:9761-9765
Convergent total syntheses of the furanocembranoids 7-epi-pukalide and 7-acetylsinumaximol B have been achieved using a one-pot Knoevenagel condensation and thioether-mediated furan-forming reaction. Furan formation proceeds via a sulfur ylide and re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf5ed8f0e75813159c4aea7e392f6ecc
https://doi.org/10.1002/chem.201702591
https://doi.org/10.1002/chem.201702591
Publikováno v:
E+M Ekonomie a management. 20:4-14
The goal of the paper is to develop a simple demand model of health care services that can explain why the demand for health care services, and hence overall expenditures on health care, can rise with the introduction of visit fees based on real data
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a0cdec5acd66d76036abaa8e7c18590b
https://doi.org/10.15240/tul/001/2017-2-001
https://doi.org/10.15240/tul/001/2017-2-001
Autor:
Verena Klaus, J. Stephen Clark
Publikováno v:
Synlett. 28:1358-1362
Acyclic conjugated ynenediones tethered to an alcohol or carboxylic acid are converted into furanyl-substituted cyclic ethers or lactones in a single step by treatment with the tetrahydrothiophene. Modest levels of diastereocontrol can be achieved in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7925c6481f702af03fb122140e3b5b64
https://doi.org/10.1055/s-0036-1588758
https://doi.org/10.1055/s-0036-1588758
Publikováno v:
Chemistry (Weinheim an Der Bergstrasse, Germany)
Six members of the asbestinin family of marine diterpene natural products have been synthesized in an efficient and stereoselective manner from a single oxa‐bridged intermediate. Five of these natural products have not been synthesized previously a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db2bfd3dd5cc071da953dd6873575ea9
https://pubmed.ncbi.nlm.nih.gov/31710141
https://pubmed.ncbi.nlm.nih.gov/31710141