155020-51-2Relevant academic research and scientific papers
BICYCLIC HETEROARYL SUBSTITUTED COMPOUNDS
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Page/Page column 177; 178, (2018/03/25)
Disclosed are compounds of Formula (I) to (VIII): (I) (II) (III) (IV) (V) (VI) (VII) (VIII); or a stereoisomer, tautomer, pharmaceutically acceptable salt, solvate or prodrug thereof, wherein R3 is a bicyclic heteroaryl group substituted with zero to 3 R3a; and R1, R2, R3a, R4, and n are defined herein. Also disclosed are methods of using such compounds as PAR4 inhibitors, and pharmaceutical compositions comprising such compounds. These compounds are useful in inhibiting or preventing platelet aggregation, and are useful for the treatment of a thromboembolic disorder or the primary prophylaxis of a thromboembolic disorder.
SUBSTITUTED AMINOPURINE COMPOUNDS, COMPOSITIONS THEREOF, AND METHODS OF TREATMENT THEREWITH
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Paragraph 0308, (2016/05/02)
Provided herein are Aminopurine Compounds having the following structures: wherein R1, R2, and R3 are as defined herein, compositions comprising an effective amount of an Aminopurine Compound, and methods for treating or preventing a cancer, for example, melanoma.
NOVEL ALKYLENE DERIVATIVE
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Paragraph 0413, (2016/09/12)
The object of the present invention is to provide novel compounds having ACC2 inhibiting activity. In addition, the object of the present invention is to provide a pharmaceutical composition comprising the compound. A compound of formula (I): wherein R1 is substituted or unsubstituted fused aromatic heterocyclyl etc., ring A is substituted or unsubstituted non-aromatic carbocycle etc., -L1- is -O-(CR6R7)m- etc., -L2- is -O-(CR6R7)n- etc., each R6 and R7 are independently hydrogen, halogen etc., R2 is substituted or unsubstituted alkyl, R3 is hydrogen or substituted or unsubstituted alkyl, R4 is substituted or unsubstituted alkylcarbonyl etc..
The Effect of Fluorine Substitution on the Metabolism and Antimalarial Activity of Amodiaquine
O'Neill, Paul M.,Harrison, Anthony C.,Storr, Richard C.,Hawley, Shaun R.,Ward, Stephen A.,Park, B. Kevin
, p. 1362 - 1370 (2007/10/02)
Amodiaquine (AQ) (2) is a 4-aminoquinoline antimalarial which causes adverse side effects such as agranulocytosis and liver damage.The observed drug toxicity is believed to be related to the formation of an electrophilic metabolite, amodiaquine imine (AQQI), which can bind to cellular macro-molecules and initiate hypersensitivity reactions. 5'-Fluoroamodiaquine (5'-FAQ, 3), 5',6'-difluoroamodiaquine (5',6'-DIFAQ, 4), 2',6'-difluoroamodiaquine (2',6'-DIFAQ, 5), 2',5',6'-trifluoroamodiaquine (2',5',6'-TRIFAQ, 6) and 4'-dehydroxy-4'-fluoroamodiaquine (4'-deOH-4'-FAQ, 7) have been synthesized to assess the effect of fluorine substitution on the oxidation potential, metabolism, and in vitro antimalarial activity of amodiaquine.The oxidation potentials were measured by cyclic voltammetry, and it was observed that substitution at the 2',6'- and 4'-positions (2',6'-DIFAQ and 4'-deOH'4'-FAQ) produced analogues with significantly higher oxidation potentials than the parent drug.Fluorine substitution at the 2',6'-positions and 4'-position also produced analogues that were more resistant to bioactivation.Thus 2',6'-DIFAQ and 4'-deOH-4'-FAQ produced thioether conjugates corresponding to 2.17percent (SD: +/-0.27percent) and 0percent of the dose compared with 11.87percent (SD: +/-1.31percent) of the dose for amodiaquine.In general the fluorinated analogues had similar in vitro antimalarial activity to amodiaquine against the chloroquine resistant K1 strain of Plasmodium falciparum and the chloroquine sensitive T9-96 strain of P. falciparum with the notable exception of 2',5',6'-TRIFAQ (6).The data presented indicate that fluorine substitution at the 2',6'-positions and replacement of the 4'-hydroxyl of amodiaquine with fluorine produces analogues ( 5 and 7) that maintain antimalarial efficacy in vitro and are more resistant to oxidation and hence less likely to form toxic quinone imine metabolites.
