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A kind of new rosiglitazone analogue and its preparation method and application
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A technology of reaction and scheme, applied in the field of compound and its preparation, to achieve the effect of simple preparation method
Active Publication Date: 2021-04-27
北京安博睿达医药科技有限公司
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[0005] However, the pharmacological activity of rosiglitazone still needs to be further improved
Method used
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Embodiment 1
[0098] Example 1: (E)-5-(4-(2-(cyclopropyl(pyridin-2-yl)amino)ethoxy)benzylidene)thiazolidine-2,4-dione (compound II-1 )
[0099]
[0100] step 1:
[0101]
[0102] Add A1 (50g, 0.3286mol, 1eq) and 1,2-dibromoethane (500g, double as solvent and raw material, excess) in a 500ml single-necked flask, and add potassium carbonate (63.0g, 0.4558mol, 1.3eq), the temperature was raised to 120°C, and the reaction was carried out overnight, monitored by TLC until the reaction was complete. Stop heating, cool down, evaporate 1,2-dibromoethane under reduced pressure with an oil pump at 70°C, evaporate to dryness, add water to dissolve, extract with 800ml dichloromethane, dry over anhydrous magnesium sulfate, concentrate by suction filtration, pack 250g silica gel column, wet The method was used to load the sample, and 70 g of slightly pure light yellow oil (solid after standing for a long time) was obtained, and the yield was 82.35%.
[0103] Step 2:
[0104]
[0105] Add A2 (7...
Embodiment 2
[0129] Example 2: 5-(4-(2-cyclopropyl(pyridin-2-yl)amino)ethoxy)benzylthiazolidine-2,4-dione (compound I-1)
[0130]
[0131] On the basis of Example 1, step 9 is further included, and the product A9 is further reduced using palladium carbon catalytic hydrogenation. MS (m / z): 384.1 (M+H).
Embodiment 3
[0132] Example 3: 5-(4-(2-cyclopropyl(pyrimidin-2-yl)amino)ethoxy)benzylthiazolidine-2,4-dione (compound 1-2)
[0133]
[0134] The preparation method is the same as in Example 2, except that Step 4 and Step 5 are omitted, and the raw material in Step 3 is 2-bromopyrimidine. MS (m / z): 386.1 (M+H).
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Abstract
The invention relates to a rosiglitazone analogue, a preparation method and application thereof. Described compound has the structure shown in following formula (I), R 1 represents C that is unsubstituted or optionally substituted by 3‑10 Cycloalkyl: halogen, nitro, cyano, hydroxyl, mercapto, C 1‑6 Alkyl, C 1‑6 Alkoxy, halo C 1‑6 Alkyl; A 1 、A 2 The same or different, independently of each other represents C that is unsubstituted or optionally substituted by 6‑14 Aryl or 5‑14 membered heteroaryl: halogen, nitro, cyano, hydroxyl, mercapto, C 1‑6 Alkyl, C 1‑6 Alkoxy, halo C 1‑6 Alkyl; n is an integer of 0-5; R 2 means H or C 1‑6 Alkyl; R 3 Represents H; X, Z, W are the same or different, and independently represent S or O; represent a single bond or a double bond, and when it is a single bond, there is R 3 ; When double bond, R is absent 3 . The invention also provides its preparation method and its application in the preparation of medicines for treating or preventing diabetes.
Description
technical field [0001] The invention relates to a novel rosiglitazone analogue and its preparation method and application, and belongs to the technical field of compounds and its preparation method and application. Background technique [0002] Rosiglitazone [chemical name 5-{4-[2-(methyl-2-pyridylamino)ethoxy]benzyl}-2,4-thiazolidinedione (structural formula as formula (a) shown)] or rosiglitazone hydrochloride (Rosiglitazone hydrochloride, also referred to as rosiglitazone) [chemical name 5-{4-[2-(methyl-2-pyridylamino)ethoxy]benzyl}- 2,4-thiazolidinedione hydrochloride (structural formula shown in formula (b))]: [0003] [0004] It belongs to the thiazolidinedione class of antidiabetic drugs, which can effectively control blood sugar by improving insulin sensitivity. [0005] However, the pharmacological activity of rosiglitazone still needs to be further improved. Contents of the invention [0006] The purpose of the present invention is to overcome the shortcom...
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Application Information
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