A novel class of non-steroidal progesterone receptorantagonists with aromatic β-amino-ketone scaffold have been synthesized and characterized with high binding affinity and great selectivity for the cognate receptors. Among them, compound 22 was shown to be the most potent progesterone receptorantagonist in cotransfection assay and a murine model of ligand-induced decidualization.
One-pot three-component Mannich-type reaction catalyzed by trifluoromethanesulfonic acid in water
作者:Gang Li、Hankui Wu、Zhiyong Wang、Xianli Wang
DOI:10.1134/s0023158411010113
日期:2011.2
One-pot three-componentMannich-typereaction of ketones, aldehydes and amines was efficiently catalyzed by liquid trifluoromethanesulfonic acid in water at ambient temperature. The high yield of corresponding β-amino ketones compounds were achieved. The proposed method is mild, green, simple and efficient.
Aluminium dodecatungstophosphate (AlPW12O40)—An efficient catalyst for three-component Mannich reaction in water
作者:Gang Li、Ruiling Long、Suling Yang、Liping Zhang
DOI:10.1134/s0023158411040045
日期:2011.7
One-pot, three-component Mannich reactions of ketones, aldehydes and amines were efficiently catalyzed by AlPW12O40 in water at ambient temperature to give the corresponding beta-amino ketones in good to excellent yields. The method has the following merits: Firstly, Catalyst AlPW12O40 is non-corrosive and environmentally benign; Secondly, loading amount of catalyst is very low, less than 1 mol %; Thirdly, water as solvent is green and safe.
Nafion-H®: A recyclable and diastereoselective solid acid catalyst for three-component mannich reaction
作者:Yang Suling、Li Gang、Long Yunling
DOI:10.1134/s0023158412060079
日期:2012.11
One-pot, three-componentMannichreactions of ketones, aldehydes and amines are efficiently catalyzed by heterogeneous Nafion-H® ambient temperature to give the corresponding β-amino ketones compounds in good to excellent yields. The catalyst can be easily recovered and reused without any decrease of activity for at least four times. Diastereoselective products can be obtained in Mannichreaction of aliphatic