ListarInvestigación por tema "Diterpenes"

Mostrando ítems 1-8 de 8

    • Diterpenes and sesquitrpenes from Mikania banisteriae 

      Lobitz, G. O.; Tamayo Castillo, Giselle; Merfort, Irmgard (1997)
      Two new ent-kaurane diterpenes, 18,19-diacetoxy-ent-kaur-16-ene and 17-oxo-ent-kaur-15(16)-en-18-oic acid, were isolated from the aerial parts of Mikania banisteriae, together with the known ent-kauranes ent-kaur-16-en-18-oic ...

    • Diterpenes from Fleischmannia hymenophylla and Brickellia laciniata 

      Jakupovic, Jasmin; Tsichritzis, Fotini; Tamayo Castillo, Giselle; Castro Araya, Víctor H.; Bohlmann, Ferdinand; Boldt, E. (1989)
      The aerial parts of Fleischmannia hymenolepis gave in addition to phytol and sesamin a new derivative of beyerene named hymenophylloide. The aerial parts of Brickellia laciniata afforded several new labdane derivatives and ...

    • Ent-clerodane derivatives and other constituents from representatives of the subgenus ageratina 

      Tamayo Castillo, Giselle; Jakupovic, Jasmin; Bohlmann, Ferdinand; Castro Araya, Víctor H.; King, Robert M. (1989)
      Ageratina ixiocladon afforded several p-hydroxyacetophenone derivatives and diterpenes including six new ent-clerodanes. Two further species, which are also placed in the subgenus Ageratina, gave p-hydroxyacetophenone ...

    • Ent-clerodane derivatives from chromolaena connivens 

      Tamayo Castillo, Giselle; Jakupovic, Jasmin; Bohlmann, Ferdinand; King, Robert M.; Robinson, Harold E. (1989)
      The aerial parts of Chromolaena connivens afforded in addition to widespread compounds four ent-clerodane derivatives and two epimeric prostaglandin-like acids. A second species, C. turnariensis, only gave widespread ...

    • Heliangolides from Viguiera sylvatica 

      Tamayo Castillo, Giselle; Jakupovic, Jasmin; Bohlmann, Ferdinand; Castro Araya, Víctor H. (1989)
      The extract of the aerial parts of Viguiera sylvatica gave, in addition to known heliangolides, four new heliangolides related to 1-desoxyniveusin A and one to 11,13-dihydrofuroheliangolide as well as three guaianolides, ...

    • Kaurene diterpenes from Mikania vitifolia 

      Lobitz, G. O.; Tamayo Castillo, Giselle; Poveda Álvarez, Luis Jorge; Merfort, Irmgard (1998)
      From the aerial parts of Mikania vitifolia three new ent-kaurane diterpenes, ent-7α-cinnamoyloxy-15β-hydroxy-kaur-16-en-19-oic acid, ent-15β-cinnamoyloxy-7α-hydroxy-kaur-16-en-19-oic acid and ent-15β-hydroxy-7α-(E)-lachn ...

    • Seco-manool and other constituents from fleischmannia microstemon 

      Tamayo Castillo, Giselle; Castro Araya, Víctor H. (1988-01)
      The aerial parts of Fleischmannia microstemon afforded in addition to sesamin and two clerodanes, ent-manoyl oxide and two derivatives of the latter, one a 6β-acetoxy derivative and the other a seco-labdane. From F. pratensis ...

    • (+)-α-copaen-8-one and other constituents from Neomirandea species 

      Tamayo Castillo, Giselle; Jakupovic, Jasmin; Castro Araya, Víctor H.; King, Robert M. (1989)
      The investigation of five Neomirandea species gave two known entclerodanes, a heliangolide, a cadinene and a new copaene derivative as well as some widespread compounds.