Piperazine derivatives as FASN inhibitors
A compound and mixture technology, applied in anti-inflammatory agents, suppository delivery, drug combination, etc., can solve problems such as weakening HCV replication
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Embodiment 1
[0206] 1-[4-(4-Isoquinolin-6-yl-benzoyl)-piperazin-1-yl]-propan-1-one ("A1")
[0207]
[0208] 1.1 Dissolve tert-butyl-1-piperazinecarboxylate (0.5 g; 2.69 mmol) in 10 ml of dichloromethane (DCM). N-ethyldiisopropylamine (1.37 ml; 8.06 mmol) for synthesis was added, and the mixture was cooled to 0°C. Now, the 4-bromobenzoyl chloride (0.66 g; 2.95 mmol) used for the synthesis was dissolved in 10 ml DCM and added dropwise to the reaction, followed by stirring overnight at room temperature. On LC-MS, the reaction was complete. The reaction mixture was extracted with 50 mL of water. The organic layer was washed with MgSO 4Drying, filtering off, and then reducing to dryness under vacuum afforded 1,0 g (100%) of tert-butyl 4-(4-bromo-benzoyl)-piperazine-1-carboxylate 1 as a beige solid.
[0209] 1.2 Dissolve tert-butyl 4-(4-bromo-benzoyl)-piperazine-1-carboxylate 1 (0.5 g; 1.35 mmol) in 15 ml HCl / isopropanol (5-6N), and then °C and stirred for 2 hours. The reaction mixture ...
Embodiment A
[0222] Example A: Injection vial
[0223] A solution of 100 g of the active ingredient of formula I and 5 g of disodium hydrogen phosphate in 3 l of double distilled water was adjusted to pH 6.5 using 2 N hydrochloric acid, sterile filtered, transferred into injection vials and lyophilized under sterile conditions , and sealed under sterile conditions. Each injection vial contains 5 mg of active ingredient.
Embodiment B
[0224] Embodiment B: Suppository
[0225] A mixture of 20 g of active ingredient of formula I and 100 g of soy lecithin and 1400 g of cocoa butter is melted, poured into molds and allowed to cool. Each suppository contains 20 mg of active ingredient.
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