832710-65-3 2,8-Diazaspiro[4.5]decan-1-one hydrochloride 42614558, apiperidines compound, is more and more widely used in various.
With the rapid development and complex challenges of chemical substances, new drug synthesis pathways are usually the most effective.832710-65-3,2,8-Diazaspiro[4.5]decan-1-one hydrochloride,as a common compound, the synthetic route is as follows.
2,8-Diazaspiro[4.5]decan-1 -one hydrogen chloride (200 mg, 1.049 mmol) was dissolved in a mixture of triethylamine (0.439 ml, 3.15 mmol) and dichloromethane (10 ml), and 2-bromo-5-(trifluoromethyl)benzenesulfonyl chloride (407 mg, 1 .259 mmol) was added. The reaction mixture was stirred for 16 h and the reaction mixture was concentrated in vacuo. The resulting yellow solid 8-{[2-bromo-5- (trifluoromethyl)phenyl]sulfonyl}-2,8-diazaspiro[4.5]decan-1 -one (825 mg, impure) was used in the next reaction without further purification. MS ES+ve m/z 443 (M+H). 8-{[2-bromo-5-(trifluoromethyl)phenyl]sulfonyl}-2,8-diazaspiro[4.5]decan-1 -one (825 mg, impure) and potassium carbonate (217 mg, 1.574 mmol) was suspended in 1 ,4- dioxane (10 ml_). Trimethylboroxine (0.219 ml_, 1.574 mmol) and Pd(PPh3)4 (121 mg, 0.105 mmol) were then added and the reaction mixture was heated to 100 C. After 20 h, the reaction was cooled, filtered through a hydrophobic frit, and concentrated in vacuo. The resulting residue was purified by silica column chromatography on SP4 (gradient elution: 0 – 20% MeOH – DCM). The resulting brown residue was further purified on MDAP twice to give 8-{[2-methyl-5-(trifluoromethyl)phenyl]sulfonyl}-2,8- diazaspiro[4.5]decan-1 -one (41 mg, 0.107 mmol) as a white solid. 1 H N MR (400 MHz, DMSO-de) delta ppm 1.39 – 1.49 (m, 2 H) 1.58 – 1 .70 (m, 2 H) 1 .89 (t, J=6.80 Hz, 2 H) 2.65 (s, 3 H) 2.84 – 2.95 (m, 2 H) 3.13 (t, J=6.80 Hz, 2 H) 3.54 (ddd, J=12.63, 4.08, 3.95 Hz, 2 H) 7.63 (s, 1 H) 7.74 (d, J=7.95 Hz, 1 H) 7.98 (dd, J=8.03, 1 .40 Hz, 1 H) 8.03 (d, J=1 .21 Hz, 1 H). MS ES+ve m/z 377 (M+H).
832710-65-3 2,8-Diazaspiro[4.5]decan-1-one hydrochloride 42614558, apiperidines compound, is more and more widely used in various.
Reference£º
Patent; CONVERGENCE PHARMACEUTICALS LIMITED; GLEAVE, Robert James; HACHISU, Shuji; PAGE, Lee William; WO2011/141729; (2011); A1;,
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