Novel Compounds and Compositions as Cathepsin Inhibitors
a technology of cathepsin inhibitors and compound compositions, applied in the field of peptidases, can solve the problems of pathological consequences and the erratic activity of cysteine proteases, and achieve the effect of preventing, inhibiting or ameliorating the pathology and/or symptomatology of the diseas
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example 1
Morpholine-4-carboxylic acid [1-(1-benzoyl-4-oxo-pyrrolidin-3-ylcarbamoyl)-2-phenylmethanesulfonyl-ethyl]-amide
Compound 1
[0120]
[0121] 2-[(Morpholine-4-carbonyl)-amino]-3-phenylmethanesulfonyl-propionic acid (1 g, 2.8 mmol), 3-amino-4-hydroxy-pyrrolidine-1-carboxylic acid tert-butyl ester (700 mg, 3.46 mmol) prepared as in Reference 1, EDC (1.5 g, 7.8 mmol), and HOBt (1.5 g, 9.6 mmol) were combined. Dichloromethane (10 mL) was added and then 4-methylmorpholine (1.5 mL). The mixture was stirred at ambient temperature for 2 hours. After dilution with ethyl acetate (200 mL) the solution was washed with saturated aqueous NaHCO3 (100 mL) and brine (100 mL), dried with MgSO4 and evaporated under vacuum. 3-Hydroxy-4-{2-[(morpholine-4-carbonyl)-amino]-3-phenylmethanesulfonyl-propionylamino}-pyrrolidine-1-carboxylic acid tert-butyl ester (1.05 g, 1.94 mmol) was obtained as yellowish foam and was dissolved in dichloromethane (6 mL). Trifluoroacetic acid (6 mL) was added and the mixture was st...
example 2
Morpholine-4-carboxylic acid [1-(1-benzenesulfonyl-4-oxo-pyrrolidin-3-ylcarbamoyl) 2-phenylmethanesulfonyl-ethyl]-amide
Compound 2
[0124]
[0125] Morpholine-4-carboxylic acid [1-(1-benzenesulfonyl-4-oxo-pyrrolidin-3-ylcarbamoyl) 2-phenylmethanesulfonyl-ethyl]-amide was prepared following the procedure detailed in Example 1, substituting benzenesulfonyl chloride for benzoyl chloride; 1H NMR: (DMSO) [8.35 (d, J=7.4 Hz), 8.28 (d, J=7.6 Hz), 1H], 7.87-7.62 (m, 5H), 7.41-7.32 (m, 5H), 7.06-6.98 (m, 1H), 4.72-4.60 (m, 1H), 4.45 (s, 2H), 4.42-4.23 (m, 1H), 3.92-3.79 (m, 2H), 3.55-3.20 (m, 11H), 3.06-2.97 (m, 1H). MS: (M+H)+ 579.
example 3
4-2-[(Morpholine-4-carbonyl)-amino]-3-phenylmethanesulfonyl-propionylamino}-3-oxo-azepane-1-carboxylic acid benzyl ester
Compound 3
[0126]
[0127] Crude 4-amino-3-hydroxy-azepane-1-carboxylic acid benzyl ester (150 mg, 0.57 mmol) prepared as in Reference 2, 2-[(morpholine-4-carbonyl)-amino]-3-phenylmethanesulfonyl-propionic acid (400 mg, 1.12 mmol), EDC (400 mg, 2.1 mmol), and HOBt (400 mg, 2.5 mmol) were combined. Dichloromethane (10 mL) was added followed by 4-methylmorpholine (0.5 mL). The mixture was stirred at ambient temperature for 2 hours. After dilution with ethyl acetate (100 mL) the solution was washed with 1N HCl, saturated aqueous NaHCO3 and brine, dried with MgSO4 and evaporated under vacuum. The residue was purified by flash chromatography (ethyl acetate / methanol 9:1) to yield 3-hydroxy-4-{2-[(morpholine-4-carbonyl)-amino]-3-phenylmethanesulfonyl-propionyl-amino}-azepane-1-carboxylic acid benzyl ester (320 mg).
[0128] 3-Hydroxy-4-{2-[(morpholine-4-carbonyl)-amino]-3-phen...
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