@article{AbegazPeter1995, author = {Abegaz, Berhanu M. and Peter, Martin G.}, title = {Emodine and emodinanthrone rhamnoside acetates from fruits of rhamnus prinoides}, issn = {0031-9422}, year = {1995}, language = {en} } @article{AlarconAldereteAguilaetal.2005, author = {Alarcon, Julio and Alderete, Joel B. and Aguila, Sergio and Peter, Martin G.}, title = {Regio and stereoselective hydroxylation of alpha-agarofuran by biotransformation of rhizopus nigricans}, year = {2005}, abstract = {A new synthesis of 9 alpha-hydroxy-alpha-agarofuran (6 alpha) is described, using a microbiological hydroxylation alpha-agarofuran (5) as the key reaction. The stereochemistry of the biohydroxylation was determined on the basis of a NOESY-experiment and GIAO calculations at the B3LYP/cc-pVDZ level. A strong gamma-effect was observed at C15 of the agarofuran ring which was correctly predicted by the GIAO-B3LYP calculations}, language = {en} } @article{AlarconAlderetePeteretal.1998, author = {Alarcon, Julio and Alderete, Joel B. and Peter, Martin G. and Becerra, Juan J. and Silva, M.}, title = {Study on synthesis of 3 alpha,4 alpha-dihydroxy-dihydro-beta-agarofuran}, year = {1998}, language = {en} } @article{AndayiYenesewDereseetal.2006, author = {Andayi, Andrew W. and Yenesew, Abiy and Derese, Solomon and Midiwo, Jacob O. and Gitu, Peter M. and Jondiko, Ogoche J. I. and Akala, Hoseah M. and Liyala, Pamela and Wangui, Julia and Waters, Norman C. and Heydenreich, Matthias and Peter, Martin G.}, title = {Antiplasmodial flavonoids from Erythrina sacleuxii}, issn = {0032-0943}, doi = {10.1055/s-2005-873200}, year = {2006}, abstract = {The acetone extracts of the root bark and stem bark of Erythrina sacleuxii showed antiplasmodial activities against the chloroquine-sensitive (D6) and chloroquine-resistant (W2) strains of Plasmodium falciparum. Chromatographic separation of the acetone extract of the root bark afforded a new isoflavone, 7-hydroxy-4 -methoxy-3'- prenylisoflavone (trivial name 5-deoxy-3' - prenylbiochanin A) along with known isoflavonoids as the antiplasmodial principles. Flavonoids and isoflavonoids isolated from the stem bark of E. sucleuxii were also tested and showed antiplasmodial activities. The structures were determined on the basis of spectroscopic evidence}, language = {en} } @article{AndersenPeterRoepstorff1996, author = {Andersen, S. O. and Peter, Martin G. and Roepstorff, Peter}, title = {Cuticular sclerotization in insects}, year = {1996}, language = {en} } @article{BahrkeEinarssonGislasonetal.2002, author = {Bahrke, Sven and Einarsson, Jon M. and Gislason, Johannes and Haebel, Sophie and Letzel, Matthias C. and Peter-Katalinic, Jasna and Peter, Martin G.}, title = {Sequence analysis of chitooligosaccharides by matrix-assisted laser desorption ionization postsource decay mass spectrometry}, year = {2002}, abstract = {Oligosaccharides composed of 2-acetamido-2-deoxy-D-glucopyranose (GlcNAc) and/or 2-amino-2-deoxy-D- glucopyranose (GlcN) were prepd. by chem. degrdn. of chitin or chitosan and sepd. by gel permeation chromatog. Oligosaccharides obtained after enzymic hydrolysis of chitosan [FA 0.19] with a fungal chitinase were derivatized by reductive amination with 2-aminoacridone and sequenced by matrix-assisted laser desorption ionization time-of-flight postsource decay (PSD) mass spectrometry (MS). The sequence of a trimer, D1A2, was established as D-A-A. The compn. of a hexamer D3A3 was .apprx.65\% D-A-D-D-A-A and 35\% D-D-A-D-A-A. The PSD MS of a nonamer D5A4-amac revealed four isobaric species D-X-Y-D-X-Y-D-A-A, where A is GlcNAc, D is GlcN, and X and Y (X ยน Y) are mutually either D or A. This structure motif was also obsd. in a dodecamer D7A5 which was composed of eight isobaric sequences of the general formula (D-X-Y)3- D-A-A.}, language = {en} } @phdthesis{BahrkeEinarssonGislasonetal.2003, author = {Bahrke, Sven and Einarsson, Jon M. and Gislason, Johannes and Haebel, Sophie and Peter-Katalinic, Jasna and Peter, Martin G.}, title = {Characterization of chitooligosaccharides by mass spectrometry}, isbn = {82-47-15901-5}, year = {2003}, language = {en} } @article{BeckerPeterPoolZobel2000, author = {Becker, Thomas W. and Peter, Martin G. and Pool-Zobel, Beatrice L.}, title = {Cellular effects of lignans : modulation of growth, oxidative DNA damage and cell metabolism in human colon cancer cells}, year = {2000}, language = {en} } @article{BerthDautzenbergPeter1998, author = {Berth, Gisela and Dautzenberg, Herbert and Peter, Martin G.}, title = {Physica-chemical characterization of chitosans in dilute solution}, isbn = {2-907922-57-2}, year = {1998}, language = {en} } @article{BerthDautzenbergPeter1998, author = {Berth, Gisela and Dautzenberg, Herbert and Peter, Martin G.}, title = {Physico-chemical characterization of chitosans varying in degree of acetylation}, issn = {0144-8617}, year = {1998}, language = {en} }