Haloallylamine sulfone derivative inhibitors of lysyl oxidases and uses thereof
A halogen and compound technology, applied in the direction of amide active ingredients, medical preparations containing active ingredients, organic chemistry, etc., can solve problems such as poor tolerance of BAPN
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[0278] The preparation of formula I compound
[0279] Compounds of formula I can be prepared by those skilled in the art using methods and materials known in the art and with reference to standard textbooks such as "Advanced Organic Chemistry" by Jerry March (Third Edition, 1985, John Wiley and Sons) or Richard C. . Larock's "Comprehensive Organic Transformations (Comprehensive Organic Transformations)" (1989, VCH Press) to easily prepare.
example 1
[0431] Preparation of tert-butyl (Z)-(4-bromo-3-fluorobut-2-en-1-yl)carbamate
[0432]
[0433] Procedure A: Preparation of tert-butyl 2-oxoethylcarbamate
[0434]
[0435] To a stirred solution of 3-amino-1,2-propanediol (20.0 g, 0.22 mol) in water (200 mL) was added di-tert-butyl dicarbonate (55.5 mL, 0.24 mol) at 0-5°C . After adjusting the alkalinity of the solution to pH about 9 by addition of aqueous solution, the mixture was stirred at room temperature (rt) for 18 hours by addition of NaOH (6N). The reaction mixture was cooled to 0-5°C, then acidified to pH about 6, then sodium metaperiodate (56.3 g, 0.26 mol) was added. The resulting suspension was stirred at room temperature for 2 hours. The mixture was filtered to remove all solids, and the filtrate was transferred to a separatory funnel and extracted with ethyl acetate (200 mL). Sodium chloride was added to the aqueous layer until a saturated solution was obtained. The aqueous layer was then further ext...
example 2
[0446] The following compounds were prepared according to Procedures E, F, G, H and I.
[0447] Preparation of (Z)-4-((2-((4-amino-2-fluorobut-2-en-1-yl)sulfonyl)phenoxy)methyl)-N,N-diisopropylbenzene Sulfonamide hydrochloride (compound 11)
[0448]
[0449] Procedure E: Preparation of 4-(bromomethyl)-N,N-diisopropylbenzenesulfonamide
[0450]
[0451] To stirred 4-(bromomethyl)benzenesulfonyl chloride (500 mg, 1.86 mmol) in CH at 0 °C 2 Cl 2 (10 mL) was added dropwise diisopropylamine (0.65 mL, 4.63 mmol). After the addition, the resulting mixture was stirred at this temperature for 30 minutes, then allowed to warm to room temperature and stirred for a further 48 hours. The reaction mixture was dissolved in HCl (1M, 20mL) and CH 2 Cl 2 (20mL). The organic layer was washed with aqueous HCl (1M; 20 mL) and water (20 mL), washed with Na 2 SO 4 Drying and concentration in vacuo afforded the title compound (yellow oil, 190 mg) in a mixture with 4-(chloromethyl)-N,...
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