From the ethanol extract of Aristolochia gigantea Mart an 8-benzylberbine-type alkaloid and an N-oxide were isolated together with pinitol and sequoyitol. Structural assignments were based on analysis of spectral data, ...

From the ethanol extract of Aristolochia gigantea Mart an 8-benzylberbine-type alkaloid and an N-oxide were isolated together with pinitol and sequoyitol. Structural assignments were based on analysis of spectral data, ...

Angiogenesis, the formation of new blood vessels from preexisting capillaries, is an important research field. As the understanding of this process increases, this new knowledge will have a significant impact on several ...

Alkaloids are a subgroup of natural nitrogenous compounds. The term “alkaloid” have many definitions because, it refers to compounds with very heterogeneous structures, however, alkaloid is a basic substance containing one ...