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cinchonain ia/trichilia catigua

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3 results

Antioxidant phenylpropanoid-substituted epicatechins from Trichilia catigua.

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Two new phenylpropanoid-substituted epicatechins, namely, catiguanin A ( 1) and catiguanin B ( 2), were isolated from the bark of Trichilia catigua along with four known compounds, cinchonain Ia ( 3), cinchonain Ib ( 4), cinchonain Ic ( 5), and cinchonain Id ( 6). The structures of 1 and 2 were

Two epimeric flavalignans from Trichilia catigua (Meliaceae) with antimicrobial activity.

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A mixture of flavalignan cinchonains Ia and Ib was isolated from the bark of Trichilia catigua. The structures were established on the basis of spectroscopic data of the natural products and their methylated derivatives including 2D NMR experiments, and compared with data in the literature. These

Capillary Electrophoresis as Tool for Diastereomeric Separation in a Trichilia catigua Fraction.

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BACKGROUND The tree Trichilia catigua, popularly known as "catuaba", shows several biological activities and has emerged as a potential source of new drugs. Considering that more than 10 species are known under the same popular name, regulatory agencies require more rigorous quality control of this
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