The Experts below are selected from a list of 2154 Experts worldwide ranked by ideXlab platform
Michael T. Davies-coleman - One of the best experts on this subject based on the ideXlab platform.
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Makaluvic Acids from the South African Latrunculid Sponge Strongylodesma aliwaliensis
Journal of natural products, 2005Co-Authors: Robert A. Keyzers, Toufiek Samaai, Catherine E. Arendse, Denver T. Hendricks, Michael T. Davies-colemanAbstract:Two new metabolites, makaluvic acid C (1) and N-1-beta-d-ribofuranosylmakaluvic acid C (2), were isolated from the recently described sponge Strongylodesma aliwaliensis collected off the east coast of South Africa. Standard spectroscopic techniques provided the structures of both compounds. Chiral GC analysis of the peracetylated aldononitrile derivative of the acid hydrolysate of 2 confirmed the d-configuration of the ribose moiety in this compound. Compound 2 and four related pyrroloquinoline metabolites, isolated previously from S. aliwaliensis, exhibited in vitro cytotoxicity against esophageal cancer cells.
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Novel pyrroloquinoline ribosides from the South African latrunculid sponge Strongylodesma aliwaliensis
Tetrahedron Letters, 2004Co-Authors: Robert A. Keyzers, Toufiek Samaai, Michael T. Davies-colemanAbstract:Two novel pyrroloquinoline ribosides, N-1-β-D-ribofuranosyldamirone C (1), and N-1-β-D-ribofuranosylmakaluvamine I (2) were isolated from a new species of South African latrunculid sponge, Strongylodesma aliwaliensis. Standard spectroscopic techniques were used to determine the structures of 1 and 2. Molecular modeling studies and NOESY data of 1 and 2, in combination with Chiral GC analysis of their derivatized acid hydrolysis products, established the β-D-configuration of the ribofuranose moieties.
Robert A. Keyzers - One of the best experts on this subject based on the ideXlab platform.
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Makaluvic Acids from the South African Latrunculid Sponge Strongylodesma aliwaliensis
Journal of natural products, 2005Co-Authors: Robert A. Keyzers, Toufiek Samaai, Catherine E. Arendse, Denver T. Hendricks, Michael T. Davies-colemanAbstract:Two new metabolites, makaluvic acid C (1) and N-1-beta-d-ribofuranosylmakaluvic acid C (2), were isolated from the recently described sponge Strongylodesma aliwaliensis collected off the east coast of South Africa. Standard spectroscopic techniques provided the structures of both compounds. Chiral GC analysis of the peracetylated aldononitrile derivative of the acid hydrolysate of 2 confirmed the d-configuration of the ribose moiety in this compound. Compound 2 and four related pyrroloquinoline metabolites, isolated previously from S. aliwaliensis, exhibited in vitro cytotoxicity against esophageal cancer cells.
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Novel pyrroloquinoline ribosides from the South African latrunculid sponge Strongylodesma aliwaliensis
Tetrahedron Letters, 2004Co-Authors: Robert A. Keyzers, Toufiek Samaai, Michael T. Davies-colemanAbstract:Two novel pyrroloquinoline ribosides, N-1-β-D-ribofuranosyldamirone C (1), and N-1-β-D-ribofuranosylmakaluvamine I (2) were isolated from a new species of South African latrunculid sponge, Strongylodesma aliwaliensis. Standard spectroscopic techniques were used to determine the structures of 1 and 2. Molecular modeling studies and NOESY data of 1 and 2, in combination with Chiral GC analysis of their derivatized acid hydrolysis products, established the β-D-configuration of the ribofuranose moieties.
Samson Abah Abagale - One of the best experts on this subject based on the ideXlab platform.
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2r 5s theaspirane identified as the kairomone for the banana weevil cosmopolites sordidus from attractive senesced leaves of the host banana musa spp
Chemistry: A European Journal, 2018Co-Authors: Samson Abah Abagale, Christine M. Woodcock, Antony M. Hooper, John C. Caulfield, David M. Withall, Keith Chamberlain, Samuel Osafo Acquaah, Helmut F. Van Emden, Haruna BraimahAbstract:The principal active component produced by highly attractive senesced host banana leaves, Musa spp., for the banana weevil, Cosmopolites sordidus, is shown by coupled gas chromatography‐electroantennography (GC‐EAG), coupled GC‐mass spectrometry (GC‐MS), chemical synthesis and coupled enantioselective (Chiral) GC‐EAG to be (2R,5S)‐theaspirane. In laboratory behaviour tests, the synthetic compound is as attractive as natural host leaf material and presents a new opportunity for pest control.
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(2R,5S)‐Theaspirane Identified as the Kairomone for the Banana Weevil, Cosmopolites sordidus, from Attractive Senesced Leaves of the Host Banana, Musa spp.
Chemistry: A European Journal, 2018Co-Authors: Samson Abah Abagale, Christine M. Woodcock, Antony M. Hooper, John C. Caulfield, David M. Withall, Keith Chamberlain, Samuel Osafo Acquaah, Helmut F. Van Emden, Haruna Braimah, John A. PickettAbstract:The principal active component produced by highly attractive senesced host banana leaves, Musa spp., for the banana weevil, Cosmopolites sordidus, is shown by coupled gas chromatography‐electroantennography (GC‐EAG), coupled GC‐mass spectrometry (GC‐MS), chemical synthesis and coupled enantioselective (Chiral) GC‐EAG to be (2R,5S)‐theaspirane. In laboratory behaviour tests, the synthetic compound is as attractive as natural host leaf material and presents a new opportunity for pest control.
Toufiek Samaai - One of the best experts on this subject based on the ideXlab platform.
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Makaluvic Acids from the South African Latrunculid Sponge Strongylodesma aliwaliensis
Journal of natural products, 2005Co-Authors: Robert A. Keyzers, Toufiek Samaai, Catherine E. Arendse, Denver T. Hendricks, Michael T. Davies-colemanAbstract:Two new metabolites, makaluvic acid C (1) and N-1-beta-d-ribofuranosylmakaluvic acid C (2), were isolated from the recently described sponge Strongylodesma aliwaliensis collected off the east coast of South Africa. Standard spectroscopic techniques provided the structures of both compounds. Chiral GC analysis of the peracetylated aldononitrile derivative of the acid hydrolysate of 2 confirmed the d-configuration of the ribose moiety in this compound. Compound 2 and four related pyrroloquinoline metabolites, isolated previously from S. aliwaliensis, exhibited in vitro cytotoxicity against esophageal cancer cells.
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Novel pyrroloquinoline ribosides from the South African latrunculid sponge Strongylodesma aliwaliensis
Tetrahedron Letters, 2004Co-Authors: Robert A. Keyzers, Toufiek Samaai, Michael T. Davies-colemanAbstract:Two novel pyrroloquinoline ribosides, N-1-β-D-ribofuranosyldamirone C (1), and N-1-β-D-ribofuranosylmakaluvamine I (2) were isolated from a new species of South African latrunculid sponge, Strongylodesma aliwaliensis. Standard spectroscopic techniques were used to determine the structures of 1 and 2. Molecular modeling studies and NOESY data of 1 and 2, in combination with Chiral GC analysis of their derivatized acid hydrolysis products, established the β-D-configuration of the ribofuranose moieties.
Haruna Braimah - One of the best experts on this subject based on the ideXlab platform.
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2r 5s theaspirane identified as the kairomone for the banana weevil cosmopolites sordidus from attractive senesced leaves of the host banana musa spp
Chemistry: A European Journal, 2018Co-Authors: Samson Abah Abagale, Christine M. Woodcock, Antony M. Hooper, John C. Caulfield, David M. Withall, Keith Chamberlain, Samuel Osafo Acquaah, Helmut F. Van Emden, Haruna BraimahAbstract:The principal active component produced by highly attractive senesced host banana leaves, Musa spp., for the banana weevil, Cosmopolites sordidus, is shown by coupled gas chromatography‐electroantennography (GC‐EAG), coupled GC‐mass spectrometry (GC‐MS), chemical synthesis and coupled enantioselective (Chiral) GC‐EAG to be (2R,5S)‐theaspirane. In laboratory behaviour tests, the synthetic compound is as attractive as natural host leaf material and presents a new opportunity for pest control.
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(2R,5S)‐Theaspirane Identified as the Kairomone for the Banana Weevil, Cosmopolites sordidus, from Attractive Senesced Leaves of the Host Banana, Musa spp.
Chemistry: A European Journal, 2018Co-Authors: Samson Abah Abagale, Christine M. Woodcock, Antony M. Hooper, John C. Caulfield, David M. Withall, Keith Chamberlain, Samuel Osafo Acquaah, Helmut F. Van Emden, Haruna Braimah, John A. PickettAbstract:The principal active component produced by highly attractive senesced host banana leaves, Musa spp., for the banana weevil, Cosmopolites sordidus, is shown by coupled gas chromatography‐electroantennography (GC‐EAG), coupled GC‐mass spectrometry (GC‐MS), chemical synthesis and coupled enantioselective (Chiral) GC‐EAG to be (2R,5S)‐theaspirane. In laboratory behaviour tests, the synthetic compound is as attractive as natural host leaf material and presents a new opportunity for pest control.