1,2-Fused pyrimidines VII. 3-(Dialkylamino)-1H-pyrimido[1,2-a]quinolin-1-ones and 2-(dialkylamino)-4H-pyrimido[2,1-a]isoquinolin-4-ones as antiplatelet compounds
摘要:
A number of 3-(dialkylamino)-1H-pyrimido[1,2-a]quinolin-1 ones 3 and 2-(dialkylamino)-4H-pyrimido [2,1-a]isoquinolin-4-ones 4 were prepared by treating the corresponding chloro derivatives with an excess of dialkylamines. The highest in vitro antiplatelet activity was obtained when the dialkylamino substituent was 1-piperazinyl (compounds 3g and 4e). The novel 2-(1-piperazinyl)-4H-pyrido[ ,2-a]pyrimidin-4-one 2a was also prepared by an analogous procedure, which resulted in the most active compound towards all the platelet aggregation inducers used (ADP, collagen, A 23187). Moreover, some examples of 1-(dialkylamino)-3H pyrimido[l,2-a]quinolin-3-ones 5 and 4-(dialkylamino)-2H-pyrimido[2,1-a]isoquinolin-2-ones 6 were also obtained (together with negligible or lower amounts of the corresponding isomers 3 and 4, respectively) from the cyclocondensation of the appropriate ethyl N,N-dialkylmalonamate/phosphorus oxychloride reagents 13 with 2-aminoquinoline or 1-aminoisoquinoline. These;latter compounds showed a rather low antiplatelet activity.
Click and Release: A High-Content Bioorthogonal Prodrug with Multiple Outputs
摘要:
A high-content bioorthogonal prodrug with multiple outputs using the "click, cyclize, and release" concept is described. The proof of concept is established by the co-delivery of a gasotransmitter carbon monoxide, an anticancer drug floxuridine, and an in situ generated fluorescent reporter molecule for real-time monitoring of the prodrug activation. Bioorthogonal prodrugs as such are invaluable tools for the co-delivery of other drug payloads for multimodal therapy.
[EN] INHIBITORS OF APOL1 AND USE OF THE SAME<br/>[FR] INHIBITEURS D'APOL1 ET LEUR UTILISATION
申请人:VERTEX PHARMA
公开号:WO2021252859A1
公开(公告)日:2021-12-16
The disclosure provides at least one compound, deuterated derivative, or pharmaceutically acceptable salt chosen from compounds of formula (I), deuterated derivatives thereof, and pharmaceutically acceptable salts of any of the foregoing, compositions comprising the same, and methods of making and using the same, including use in treating APOL1 mediated kidney disease.
[EN] NEW ISOINDOLINE OR ISOQUINOLINE COMPOUNDS, A PROCESS FOR THEIR PREPARATION AND PHARMACEUTICAL COMPOSITIONS CONTAINING THEM<br/>[FR] NOUVEAUX COMPOSÉS ISOINDOLINE OU ISOQUINOLÉINE, PROCÉDÉ POUR LEUR PRÉPARATION ET COMPOSITIONS PHARMACEUTIQUES LES CONTENANT
申请人:SERVIER LAB
公开号:WO2015011164A1
公开(公告)日:2015-01-29
Compounds of formula (I): (I) wherein Het, R3, R4, R5, R7, R8, R9, T, p, p', q, and q' are as defined in the description are pro-apoptotic agents useful in the treatment of cancers and of auto-immune and immune system diseases.
Malonamate, malonic acid and malonamide derivatives of heterocyclic compounds were synthesized as part of a search for new biologically active compounds, e. g., those having antiinflammatory activity. Malonamates (1-17) were prepared by the reaction of amines containing heterocycles with malonic acid monoethyl ester. Hydrolysis of the malonamates gave the malonamic acids (18-24) in good yields. Malonamides (25-43) were synthesized by condensing amines with N-substituted malonamic acids. The antiinflammatory activity of these compounds was examined against carrageenin-induced rat paw edema. N-[2-(6-Methoxy) benzothiazolyl] malonamic acid (23) and its ethyl ester (7) showed significant activity.
Reaction of trimethylsilyl derivatives with Meldrum's acid : A new and easy monofunctionalization of malonic acid
作者:B. Rigo、D. Fasseur、P. Cauliez、D. Couturier
DOI:10.1016/s0040-4039(00)99406-1
日期:1989.1
Treatment of Meldrum's acid with silylated derivatives (amines, lactams or alcohols) yields very easily monofunctionalized malonic silyl esters. Hydrolysis of these silyl esters leads to the corresponding monoacids with a very good yield.
Regioselective and stereoselective cyclizations of cyclohexadienones tethered to active methylene groups
作者:Rodolfo Tello-Aburto、Kyle A. Kalstabakken、Kelly A. Volp、Andrew M. Harned
DOI:10.1039/c1ob06125a
日期:——
of 2,5-cyclohexadienones tethered to activated methylene groups was studied. The substitution around the cyclohexadienone ring serves to regioselectively direct these cyclizations based primarily on electronic effects. In the case of brominated substrates, these reactions proceed to give highly unusual electron-deficient tricyclic cyclopropanes. By using a Cinchona alkaloid-based phase-transfer catalyst