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[0100] Compound I-1 (10 g, 40 mmol) was dissolved in dichloromethane (160 mL), and oxalyl chloride (6.77 mL, 80 mmol) and N,N-dimethylformamide (1 mL) were added dropwise under ice-cooling conditions. After reacting for about 5.5 hours, the solvent and unreacted oxalyl chloride were distilled off under reduced pressure to obtain acid chloride. Compound II-1 (11.175g, 60mmol) was dissolved in dichloromethane (100mL), and the above-prepared acid chloride and triethylamine (16.6mL, 120mmol) were added under ice-cooling conditions, and reacted for 12 hours. The reaction system was washed with water (100mL x 3), saturated sodiumcarbonate solution (100mL x 2), saturated brine (100mL x 2), dried over anhydroussodiumsulfate, the solvent was evaporated under reduced pressure, and the residue was subjected to column chromatography ( Eluent: petroleum e...
[0108] Compound 4 was obtained by referring to the method of Example 1: 1 H NMR (300MHz, CDCl 3 )δ7.83(d, J=8.1Hz, 2H), 7.71(d, J=8.2Hz, 2H), 7.02(d, J=7.4Hz, 1H), 6.68(d, J=7.3Hz, 1H) , 6.58(s, 1H), 3.86(t, J=5.2Hz, 2H), 3.81-3.70(m, 4H), 3.06(m, 4H), 2.31(s, 3H), 2.14(s, 3H), 1.79-1.61 (m, 4H), 1.24 (s, 6H). ESI-MS: m / z 549.2 [M+Na] + .
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Abstract
The invention discloses a piperazine compound with AMPKagonist activity, and a preparation method and medical application of the piperazine compound. The piperazine compound is a compound shown as aformula (I) (please see the specifications for the formula), and a pharmaceutically acceptable salt or ester or a prodrug or N-oxide or solvate thereof. The compound can be used for preparing drugs for preventing or treating AMPK-mediated diseases.
Description
technical field [0001] The invention relates to the field of biomedicine, in particular to a piperazine compound with AMPKagonist activity, and also relates to a preparation method of the compound and its medical use as an AMPK agonist. [0002] This patent application claims the priority of the Chinese patent application (application number 201810345939.X, application date: April 13, 2018, invention name: piperazine AMPK agonist and its medical use). Background technique [0003] AMPK (adenylate-activated proteinkinase) is a key kinase that regulates energy metabolism and inflammatory responses in the body. Its phosphorylation activation can overcome insulin resistance, lower blood sugar, lower blood lipids (by inhibiting the synthesis of fatty acids and cholesterol), anti-inflammation, and anti-apoptosis. Death, anti-fibrosis, promotion of mitochondrial synthesis, enhancement of mitochondrial oxidative metabolism, anti-aging and anti-tumor, etc. (Physiol. Rev. 2009, 89, ...
Claims
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