Results 171 to 180 of about 2,528 (212)

Clerodanes from solidago virgaurea

Phytochemistry, 1984
Abstract The isolation and structure determination of four known and eight new cis-clerodane lactones from the aerial parts of Solidago virgaurea are described.
Aboni Goswami, Robindra N. Barua, Ram P. Sharma, Jogendra N. Baruah, Palaniappan Kulanthaivel, Werner Herz   +5 more
openaire   +1 more source

neo-Clerodane diterpenoids from Baccharis flabellata

Phytochemistry, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
Virginia E Juan, Juan Hikawczuk, Pedro C, Rossomando, Oscar S, Giordano, José Roberto, Saad   +3 more
openaire   +2 more sources

New antifeedant neo-clerodane triol. Semisynthesis and antifeedant activity of neo-clerodane diterpenoids

Tetrahedron, 1995
Abstract Methyl 2α,3β,4β-trihydroxy-neo-clerodan-15-oate was isolated from the acid fraction of Cistus populifolius and its structure determined by semisynthesis and confirmed by X-ray diffraction. Three other triols (2, 3 and 4) and an intermediate diol (5) were also synthesized as potential antifeedants.
Julio G. Urones, Pilar Basabe, Anna M. Lithgow, Isidro S. Marcos, Alicia Jiménez, David Díez, Antonio Gómez, A.J.P. White, David J. Williams, Monique S.J. Simmonds, Wally M. Blaney   +10 more
openaire   +1 more source

Clerodanes from Polyalthia viridis

Phytochemistry, 1993
Abstract Study of a somewhat polar fraction of the extract of Polyalthia viridis bark furnished the new clerodane 3,12 E -kolavadien-15-oic acid-16-al, a bis-clerodane imide and several known clerodane derivatives. The structure assigned to polyalthialdoic acid from P. longifolia is discussed.
Anake Kijjoa, Madalena M.M. Pinto, Paulo M.M. Pinho, Werner Herz   +3 more
openaire   +1 more source

Clerodane diterpenoids of Salvia lineata

Phytochemistry, 1986
Abstract The aerial parts of Salvia lineata afforded, in addition to sitosterol, oleanolic acid and flavonoids of known structures, three clerodane derivatives related to salviarin and gensnerofolin B. The structures were elucidated by spectroscopic and chemical means.
Baldomero Esquivel, Jorge Cardenas, T.P. Ramamoorthy, Lydia Rodriguez-Hahn   +3 more
openaire   +1 more source

Acylated neo -clerodanes and 19- nor - neo -clerodanes from the aerial parts of Scutellaria coleifolia (Lamiaceae)

Phytochemistry, 2015
Scutefolides A1 and A2, two acylated neo-clerodanes with a 19,18-γ-lactone, scutefolides B1, B2 and C, three 19-nor-neo-clerodanes, together with scutefolides D, E1, E2 and F, four neo-clerodanes, were isolated from the EtOAc-soluble fraction of the aerial parts of Scutellaria coleifolia.
Shin-Ichiro, Kurimoto, Jian-Xin, Pu, Han-Dong, Sun, Yoshihisa, Takaishi, Yoshiki, Kashiwada   +4 more
openaire   +2 more sources

Clerodanes from Chrysocoma species

Phytochemistry, 1991
Abstract The investigation of two Chrysocoma species gave three new clerodanes, two being cis -decalin derivatives. The chemotaxonomy is discussed briefly.
C. Zdero, F. Bohlmann
openaire   +1 more source

Clerodanes from Onoseris alata

Phytochemistry, 1999
Aerial parts of Onoseris alata furnished five new trans-clerodanes, loliolide and a thiopheneacetylene.
E.Elizabeth Sigstad, M. del R. Cuenca, César A.N. Catalán, Thomas E. Gedris, Werner Herz   +4 more
openaire   +1 more source

5,10-seco-neo-Clerodanes and neo-Clerodanes from Salvia microphylla

Journal of Natural Products, 2014
Two new 5,10-seco-neo-clerodanes, salvimicrophyllins A and B (1 and 2), and two new neo-clerodanes, salvimicrophyllins C and D (3 and 4), were isolated from the leaves and flowers of Salvia microphylla. The structures of these compounds were elucidated mainly by analysis of their NMR spectroscopic and mass spectrometric data.
Elihú, Bautista, Rubén A, Toscano, Alfredo, Ortega   +2 more
openaire   +2 more sources

Clerodane-type diterpenoids from Nannoglottis ravida

Phytochemistry, 2004
Chemical investigation of the roots of Nannoglottis ravida resulted in the characterization of two 5alpha,10alpha-cis-clerodane-type diterpenoides, ravidin A and B. Their structures and stereochemistry were established by spectroscopic methods, including X-ray crystallographic diffraction analysis of ravidin A.
Hai-Lin, Qin, Zhi-Hong, Li
openaire   +2 more sources