Microwave-assisted synthesis of 4-oxo-2-butenoic acids by aldol-condensation of glyoxylic acid
作者:Mélanie Uguen、Conghao Gai、Lukas J. Sprenger、Hang Liu、Andrew G. Leach、Michael J. Waring
DOI:10.1039/d1ra05539a
日期:——
4-Oxobutenoic acids are useful as biologically active species and as versatile intermediates for further derivatisation. Currently, routes to their synthesis can be problematic and lack generality. Reaction conditions for the synthesis of 4-oxo-2-butenoic acid by microwave-assisted aldol-condensation between methyl ketone derivatives and glyoxylic acid have been developed. They provide the desired
Synthesis, study of the structure, and modification of the products of the reaction of 4-aryl-4-oxobut-2-enoic acids with thiourea
作者:Nadezhda N. Kolos、Nikolai V. Nazarenko、Svetlana V. Shishkina、Andrey O. Doroshenko、Elena G. Shvets、Maksim A. Kolosov、Fedor G. Yaremenko
DOI:10.1007/s10593-020-02798-y
日期:2020.9
A number of previously undescribed derivatives of 2-amino-5-(2-aryl-2-oxoethyl)thiazol-4(5H)-one containing electron-donating substituents in the aromatic ring were synthesized by the reaction of (E)-4-aryl-4-oxobut-2-enoic acids with thiourea. Reduction of the reaction products with NaBH4 yielded diastereomeric alcohols, whereas bromination in AcOH was accompanied by elimination of HBr and the formation
Non-aldehyde cinnamon flavor and delivery systems therefor
申请人:Cadbury Adams USA LLC
公开号:EP1967080A1
公开(公告)日:2008-09-10
The present invention relates to compositions and comestibles that include a non-aldehyde cinnamon flavor composition. The composition includes cinnamic aldehyde ethylene glycol acetal, and at least one non-aldehyde cinnarnyl compound. In a preferred embodiment, the flavor composition includes a high intensity sweetener,
2-[(Carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic Acids Selectively Suppressed Proliferation of Neoplastic Human HeLa Cells. A SAR/QSAR Study
作者:Branko J. Drakulić、Zorica D. Juranić、Tatjana P. Stanojković、Ivan O. Juranić
DOI:10.1021/jm0502889
日期:2005.8.1
A series of twenty alkyl-, halo-, and methoxy-aryl-substituted 2-[(carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic acids were synthesized. The new compounds, called CSAB, suppressed proliferation of human cervix carcinoma, HeLa cells, in vitro in a concentration range of 0.644 to 29.48 mu M/L. Two compounds exhibit antiproliferative activity in sub-micromolar concentrations (16, 19). Five compounds act in low micromolar concentrations (< 2 mu M/L). The most active compounds exert lower cytotoxicity toward healthy human peripheral blood mononuclear cells (PBMC and PBMC+PHA) (selectivity indexes > 10). A strong structure-activity relationship, using estimated log P values and BCUT descriptors, was observed.
2-[(Carboxymethyl)sulfanyl]-4-oxo-4-arylbutanoic Acids Suppressed Survival of Neoplastic Human HeLa Cells: A QSAR Study
作者:Branko J. Drakulić、Zorica D. Juranić、Ivan O. Juranić