Now showing items 1-18 of 18

    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1988)
      The aerial parts of Aphyllocladus denticulatus afforded, in addition to some widespread compounds, six 5-methylcoumarin derivatives isolated previo. © 1988.
    • Zdero, C.; Bohlmann, F.; Niemeyer Marich, August (1990)
      The aerial parts of Bahia ambrosioides afforded several germacranolides and heliangolides one of which has not been reported previously. Furthermore, in addition to widespread compounds, four 3-hydroxyumbelliferone derivatives ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1991)
      The aerial parts of B. santelicis afforded several known furoclerodanes and phenolics. In addition to known compounds an unusual dimeric sesquiterpene and five labdane derivatives were isolated from B. petiolata. The ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1988)
      The aerial parts of Gypothamnium pinifolium afforded, in addition to three known 5-methyl coumarins, four new 5-methyl coumarins and two closely related coumaranones. Furthermore, seven diterpenes, all derived from ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1990)
      The aerial parts of Haplopappus deserticola afforded three ent-labdane and one labdane derivative as well as a nor-ent-labdane. Furthermore, in addition to three known umbelliferone derivatives, a dimeric coumarin was ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1990)
      The aerial parts of Nardophyllum lanatum, collected in northern Chile, gave in addition to a seco-diterpene isolated from an Argentinian collection two new cis-clerodanes and an acid derived from geranyl geraniol. The ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1990)
      The aerial parts of Baccharis pingraea, collected in Chile, afforded, in addition to two diterpene glycosides isolated previously, 14 new ones and two of the corresponding desacyl aglycones. The structures were elucidated ...
    • Dupré, S.; Grenz, M.; Jakupovic, J.; Bohlmann, F.; Niemeyer, H. M. (1991)
      From 11 Chilean Senecio species eight new furoeremophilanes and eremophilanolides, eight eremophilane, one cadinane, five germacrane, one oplopanone and five shikimic acid derivatives were isolated in addition to known ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1991)
      From the aerial parts of Haplopappus pulchellus two new labdanes and six friedolabdanes were isolated while H. arbutoides afforded in addition to known labdanes five new ones, two clerodanes and a cyperone derivative. ...
    • Jakupovic, J.; Grenz, M.; Bohlmann, F.; Niemeyer, H. M. (1991)
      Investigation of five further Chilean Senecio species afforded, in addition to known compounds, four new furoeremophilanes, four eremophilanes, a germacratrienol and an acylpyrrol derivative. Structures were elucidated by ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1992)
      The aerial parts of Gutierrezia resinosa gave 15 new diterpenes including 12 labdanes and three nerylgeraniol derivatives. The structures were elucidated by high field NMR spectroscopy. © 1992.
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1991)
      The investigation of three Stevia species afforded a large variety of known sesquiterpene lactones as well as one new guaianolide, two known longipinene derivatives, two ent-labdanes and several other common compounds. © 1991.
    • Pritschow, P.; Jakupovic, J.; Bohlmann, F.; Bittner, M.; Niemeyer, H. M. (1991)
      The aerial parts of Polyachyrus sphaerocephalus gave seven new eudesmane derivatives and a germacra-dien-diol while a reinvestigation of P. fuscus afforded a new caryophyllene, two nerolidolglycosides, a curcumene and two ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1988)
      The aerial parts of Oxyphyllum ulicinum afforded, in addition to known compounds, 15 new germacrane derivatives with a 1β, 10α-epoxide, a carboxyl group at C-4, and different ester groups at C-9 and C-14. From the aerial ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1988)
      A reinvestigation of the aerial parts of Pleocarphus revolutus afforded, in addi tion to sesquiterpenes isolated previously, four new guaiane derivatives and four isocedrene derivatives, one of which is new. Furthermore, ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1991)
      The aerial parts of Haplopappus parvifolius afforded 30 new diterpenes including 21 labdane derivatives, four nor-diterpenes, three rearranged ones, four seco-labdanes and one with a new carbon skeleton whose structure was ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1990)
      The extract of the aerial parts ofO. floribundus afforded in addition to known compounds 17 new diterpenes, including eightseco-ent-labdanes with a very rare carbon skeleton. The structures were elucidated by high field ...
    • Zdero, C.; Bohlmann, F.; Niemeyer, H. M. (1990)
      The extract of the aerial parts of Perityle emoryi gave, in addition to seven known sesquiterpene lactones, six new germacranolides and a guaianolide as well as a further thymol derivative together with several known ones ...