Constituintes químicos do cerne de Brosimum potabile (Moraceae)

The equatorial hydroxy group at C-2 is cis oriented in relation to the C − O bond of the lactone ring and trans oriented relative to the axial methyl group at C-4. For

The reactivity of terpenes with HER showed to be dependent on the number of allylic non-bridge and benzylic hydrogen atoms sustible to abstraction on the substrates and on the C −

These values are higher when the hydrogen is closer to the carbonyl group, showing that the difference in chemical shifts of protons proR and proS may be attributed to this

In these experiments, the cells of all groups were treated with PMA, but a greater concentration of superoxide anions and hydrogen peroxides were observed in Group 200 compared

Quanto à análise de regressão que teve como variável dependente a dimensão Contacto Social do funcionamento psicossocial (Tabela 9), verificamos que a auto-eficácia contribuiu de

Desta forma, diante da importância do tema para a saúde pública, delineou-se como objetivos do es- tudo identificar, entre pessoas com hipertensão arterial, os

with the negative phase signal at 52.0 ppm arising from the methylene bridge between the imidazole and arylthiocarbamate groups; the two signals centered around 37.2 correspond

The 13 C-NMR data of the group of low-intensity signals (named triterpene 10 ) present a signal at C 180.1 which is characteristic of a carboxylic carbon.. The signals at C