- Investigation into the stability and reactivity of the pentacyclic alkaloid dehydroevodiamine and the benz-analog thereof
-
Limited synthetic approaches to obtain the biologically active alkaloid dehydroevodiamine (DHED) are known to date. Undesired demethylation in the most widely applied route was found to be a hampering side reaction for the benz-DHED derivative leading to a quinazolinone, which represents a benz-rutaecarpine derivative. For rutaecarpine, a related plant alkaloid, many different synthetic approaches have been described. Alternative reaction procedures to obtain DHED such as methylation of rutaecarpine and oxidation of evodiamine were investigated to make DHED more easily accessible and the latter method proved to be the most successful one. Furthermore, the remarkable equilibrium between the ring closed quinazolinium and the ring open form of the compounds was systematically investigated by UV-vis measurements. The ring open form and the quinazolinium salt, form the same species when incubated in buffer solution for 24 h. A better soluble form, i.e., 'hydroxyevodiamine', seems to represent the biologically active form that has not yet been described.
- Wehle, Sarah,Espargaró, Alba,Sabaté, Raimon,Decker, Michael
-
-
Read Online
- Aryl substituted amide compounds and its preparation method, pharmaceutical composition containing the same and application thereof (by machine translation)
-
The invention relates to an aryl-substituted amide compound in the formula (I), a preparing method thereof, a medicine composition comprising the same, and application of the amide compound and the medicine composition to pharmacy, wherein Arl, L1, M1, M2, L2 and Ar2 are defined as in the text. The aryl-substituted amide compound can excite TRPV1 and nuclear receptors (LXRs, PPARs and RXR), adjust expression of cholesterol excretion gap-associated protein ABCA1/G1, SR-BI, adjust expression of inflammation gap-associated protein TNF-alpha and the like, and play roles in promoting excretion of cholesterol and lipid, reducing sugar, adjusting blood lipid, resisting inflammation and reducing blood pressure, and can be used for treating and/or preventing and/or relieving cardiovascular and cerebrovascular diseases, adjusting blood lipid, and resisting atherosclerosis, diabetes mellitus, inflammation, pain and hypertension.
- -
-
Paragraph 0111; 0126; 0127; 0148; 0149
(2018/07/30)
-
- Optimization of rutaecarpine as ABCA1 up-regulator for treating atherosclerosis
-
ATP-binding cassette transporter A1 (ABCA1) is a key transporter and receptor in promoting cholesterol efflux, and increasing the expression level of ABCA1 is antiatherogenic. In our previous study, rutaecarpine (RUT) was found to protect ApoE-/- mice from developing atherosclerosis through preferentially up-regulating ABCA1 expression. In the present work, a series of RUT derivatives were synthesized and examined as ABCA1 expression up-regulators. Compounds CD1, CD6, and BCD1-2 were found to possess the most potential activity as antiatherosclerotic agents among all compounds tested.
- Li, Yongzhen,Feng, Tingting,Liu, Peng,Liu, Chang,Wang, Xiao,Li, Dongsheng,Li, Ni,Chen, Minghua,Xu, Yanni,Si, Shuyi
-
supporting information
p. 884 - 888
(2014/09/17)
-
- Copper-catalyzed highly enantioselective cyclopentannulation of indoles with donor-acceptor cyclopropanes
-
A highly diastereo- and enantioselective BOX/Cu(II)-catalyzed C2,C3-cyclopentannulation of indoles with donor-acceptor cyclopropanes has been developed on the basis of asymmetric formal [3 + 2] cycloaddition of indoles. This reaction provides rapid and facile access to a series of enantioenriched cyclopenta-fused indoline products and can be further extended to the construction of tetracyclic pyrroloindolines. The synthetic potential of the reaction was demonstrated in a four-step synthesis of the core structure of borreverine.
- Xiong, Hu,Xu, Hao,Liao, Saihu,Xie, Zuowei,Tang, Yong
-
p. 7851 - 7854
(2013/06/27)
-
- 4-AMINOMETHYL-1-ARYL-CYCLOHEXYLAMINE DERIVATIVES
-
The invention concerns 4-aminomethyl-1-aryl-cyclohexylamine derivatives, methods for producing same, medicines containing said compounds and the use of 4-aminomethyl-1-aryl-cyclohexylamine derivatives for producing medicines.
- -
-
-
- CYCLOHEXYLUREA DERIVATIVES
-
The invention relates to cyclohexylurea derivatives, methods for the production thereof, medicaments containing said compounds, and the use of cyclohexylurea derivatives for producing medicaments.
- -
-
-