Now showing items 1-10 of 3197
Complete 1H and 13C NMR spectral assignment of hydrogenated oxoisoaporphine derivatives
2,3,8,9,10,11-Hexahydro-7H-dibenzo[de,h]quinolin-7-one, 5-methoxy-2,3,8,9,10,11-hexahydro-7H-dibenzo[de,h] quinolin-7-one, 5-methoxy-6-hydroxy-1,2,3,7a,8,9,10,11, 11a,11b-decahydro-7H-dibenzo[de,h]quinolin-7-one, ...
Friedolabdanes and other constituents from chilean Haplopappus species
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. ...
Synthesis and total assignment of 1H and 13C NMR spectra of new oxoisoaporphines by long-range heteronuclear correlations
The new oxoisoaporphines 7H-dibenzo[de,h]quinolin-7-one, 5-methoxy-7H-dibenzo[de,h]quinolin-7-one, 5-methoxy-6-hydroxy-7H-dibenzo[de,h] quinolin-7-one, 5-hydroxy-7H-dibenzo[de,h]quinolin-7-one and 5-methoxy-6H-dibenzo[de ...
Complete structural and spectral assignment of oxoisoaporphines by HMQC and HMBC experiments
The oxoisoaporphines 2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 2,3-dihydro-5-methoxy-7H-dibenzo [de,h] quinolin-7-one, 5-methoxy-6-hydroxy-2,3-dihydro-7H-dibenzo[de,h]quinolin-7-one, 5,6-dimethoxy-2,3-dihydro-7H-dibenz ...
Variationally stable difference equations
(Elsevier Ltd, 1997)
Extremely divergent histone H4 sequence from trypanosoma cruzi: Evolutionary implications
Trypanosoma cruzi presents six histones electrophoretically resolved in three gel systems. Indirect evidence shows that one of these histones, name, corresponds to H4 in other species. We present evidence that histones is ...
Expression of hMLH1 and hMSH2 proteins in ameloblastomas and tooth germs
(Medicina Oral S. L., 2018)
Background: Mismatch repair proteins (MMRPs) are a group of nuclear enzymes that participate in the repair of base mismatches that occur during DNA replication in all proliferating cells. The most studied MMRPs are hMSH2 ...
Hypoxia induces H2O2 production and activates antioxidant defence system in grapevine buds through mediation of H 2O2 and ethylene
Paradoxically, in eukaryotic cells, hydrogen peroxide (H2O 2) accumulates in response to oxygen deprivation (hypoxia). The source of H2O2 under hypoxia varies according to the species, organs, and tissue. In nonphotosynthetic ...
Potencialidad productiva del espárrago en Chile.
(Pontificia Universidad Católica de Chile. Facultad de Agronomía e Ingeniería Forestal, 2015)
The Inclusion of Organometallic Derivatives of Cyclotriphosphazenes Inside SiO 2 Matrix and Their Conversion to Nanostructured Metal-Oxides and Phosphates
Organometallic derivatives of the cyclotriphosphazene N 3P 3[OC 6H 4CH 2CN·TiClCp 2] 6(1), N 3P 3(O 6H 5) 5[OC 6H 4N·W(CO) 5] (2), N 3P 3[OC 6H 4CH 2CN·Mo(CO) 5] 6(3), [N 3P 3(O 6H 5) 5(OC 5H 4N·CpRu(PPh 3) 2)][PF 6] (4), ...