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X A Dominguez

Publications and source records attributed to X A Dominguez.

7 recordsLinked to original sources

Isolation and identification of xochitloldione and isoxochitlolone from Cnidosculus urens.

Major components of MeOH extracts from the plant roots of Cnidosculus urens purified by cc and tlc and crystallization were lupeol acetate and the previously unreported compounds isoxochitlolone [1] and xochitloldione [2], which were identified through mass, ir, nmr, and uv spectroscopy and X-ray crystallography. In preliminary testing, isoxochitlolone has been found to be active against Escherichia coli and Staphylococcus aureus.

Anti-Bacterial Agents↗

[Not Available].

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Americas↗

Citlalitrione, a new diterpene from Jatropha dioica var. sessiliflora.

Solvent partitioning and column chromatography of MeOH root extracts of Jatropha dioica yielded four pure compounds, beta-sitosterol, jatropholone B, a previously unknown diterpene epoxytrione given the trivial name citlalitrione, and riolozatrione. Structures were determined using physical and spectral techniques and X-ray crystallography.

Chemical Phenomena↗

Kukulkanins A and B, new chalcones from Mimosa tenuefolia.

Two new methoxychalcones, kukulkanins A (2',4'-dihydroxy-3',4-dimethoxychalcone) and B (2',4',4-trihydroxy-3'-methoxychalcone), were isolated by flash chromatography of extracts of small branches of Mimosa tenuefolia. The compounds were identified using ir, nmr, uv, and mass spectroscopy, and their structures were confirmed by X-ray crystallography.

Chalcone↗