%0 Journal Article %1 RN24 %A Cretton, S. %A Bartholomeusz, T.A. %A Humam, M. %A Marcourt, L. %A Allenbach, Y. %A Jeannerat, D. %A Munoz, O. %A Christen, P. %D 2011 %J Journal of Natural Products %K dqcauchile imported %N 11 %P 2388-2394 %R 10.1021/np200450y %T Grahamines a-E, Cyclobutane-Centered Tropane Alkaloids from the Aerial Parts of Schizanthus Grahamii %U /brokenurl#<Go to ISI>://WOS:000297274900010 %V 74 %X Schizanthus grahamii is an endemic Chilean plant that is known to contain tropane alkaloids. Five new alkaloids, grahamines A-E (1-5), were isolated and characterized by extensive spectroscopic analysis. Their structures were determined to be 2-(3 alpha-hydroxytropo-6 beta-yl)oxycarbonyl-2-methyl-3-((6 beta-angeloyloxy)-3 alpha-yl)oxycarbonyl-4- phenylcyclobutanecarboxylic acid (1), 2-(3 alpha-hydroxytropo-6 beta-yl)oxy-carbonyl-2-methy1-3-((6 beta-tigloyloxy)-3 alpha-yl)oxycarbonyl-4-phenylcyclobutanecarboxylic acid (2), 1-methyl-2-(3 alpha-hydroxytropo-6 beta-yl)-oxycarbonyl-4-((6-angeloyloxy)-3 alpha-yl)oxycarbonyl-3-phenylcy- clobutanecarboxylic acid (3), 1,2-bis(3 alpha-hydroxytropo-6 beta-yl)oxy-carbonyl)-2-methyl-3-((6 beta-angeloyloxy)-3 alpha-yl)oxycarbonyl-4-phenylcyclobutanecarboxylate (4), and 1-(3 alpha-mesaconyloxytropo-6 beta-yl)-oxycarbonyl-2-(3 alpha-hydroxytropo-6 beta-yl)oxycarbonyl-2-methyl-3-((6 beta-angeloyloxy)-3 alpha-yl)oxycarbonyl-4-phenylcyclobutanecarboxylate (5)., type = Journal Article, keywords = 2+2 photodimerization, genus erythroxylum, cell-walls, acid, catalysis, esters, bamboo

@article{RN24, abstract = {Schizanthus grahamii is an endemic Chilean plant that is known to contain tropane alkaloids. Five new alkaloids, grahamines A-E (1-5), were isolated and characterized by extensive spectroscopic analysis. Their structures were determined to be 2-{[(3 alpha-hydroxytropo-6 beta-yl)oxy]carbonyl}-2-methyl-3-{[((6 beta-angeloyloxy)-3 alpha-yl)oxy]carbonyl}-4- phenylcyclobutanecarboxylic acid (1), 2-{[(3 alpha-hydroxytropo-6 beta-yl)oxy]-carbonyl}-2-methy1-3-{[((6 beta-tigloyloxy)-3 alpha-yl)oxy]carbonyl}-4-phenylcyclobutanecarboxylic acid (2), 1-methyl-2-{[(3 alpha-hydroxytropo-6 beta-yl)-oxy]carbonyl}-4-{[((6-angeloyloxy)-3 alpha-yl)oxy]carbonyl}-3-phenylcy- clobutanecarboxylic acid (3), 1,2-bis{[(3 alpha-hydroxytropo-6 beta-yl)oxy]-carbonyl)-2-methyl-3-{[((6 beta-angeloyloxy)-3 alpha-yl)oxy]carbonyl}-4-phenylcyclobutanecarboxylate (4), and 1-{[(3 alpha-mesaconyloxytropo-6 beta-yl)-oxy]carbonyl}-2-{[(3 alpha-hydroxytropo-6 beta-yl)oxy]carbonyl}-2-methyl-3-{[((6 beta-angeloyloxy)-3 alpha-yl)oxy]carbonyl}-4-phenylcyclobutanecarboxylate (5).}, type = {Journal Article}, keywords = {2+2 photodimerization, genus erythroxylum, cell-walls, acid, catalysis, esters, bamboo} }, added-at = {2019-12-04T03:57:35.000+0100}, author = {Cretton, S. and Bartholomeusz, T.A. and Humam, M. and Marcourt, L. and Allenbach, Y. and Jeannerat, D. and Munoz, O. and Christen, P.}, biburl = {https://www.bibsonomy.org/bibtex/2aa080c51db85701f4321e0f3dcdd6d5a/dqcauchile}, doi = {10.1021/np200450y}, interhash = {0b5e3e138ce2bfe32fb7794e0c559ce7}, intrahash = {aa080c51db85701f4321e0f3dcdd6d5a}, issn = {0163-3864}, journal = {Journal of Natural Products}, keywords = {dqcauchile imported}, number = 11, pages = {2388-2394}, timestamp = {2019-12-04T03:58:17.000+0100}, title = {Grahamines a-E, Cyclobutane-Centered Tropane Alkaloids from the Aerial Parts of Schizanthus Grahamii}, url = {/brokenurl#<Go to ISI>://WOS:000297274900010}, volume = 74, year = 2011 }