Heterocyclic compounds and their applications in medicine
A compound, heterocycle technology, applied in the field of medicine
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[0178] Preparation of intermediate compounds
[0179] Preparation of Intermediate I-100':
[0180]
[0181] 1-(2,3-difluoropropyl)azetidine-3-amine ( I-100’-1 )
[0182]
[0183] first step
[0184] 2-Benzyloxymethyloxirane ( I-100'-1-a )
[0185]
[0186] NaOH (3.7 g), tetra-n-butylammonium iodide TBAI (3.43 g) and DMF (150 ml) were added to the reaction flask, cooled in an ice-water bath, and then oxirane-2-ylmethanol (CAS: 556- 52-5; 6.85 g) was dropped into the reaction flask and stirred for 2 hours; then benzyl bromide BnBr (17.3 g) was slowly added dropwise; after the addition, the reaction was left overnight at room temperature. Then, add water to quench the reaction, extract with ethyl acetate; collect the ethyl acetate layer, then wash twice with dilute sodium chloride aqueous solution, dry over anhydrous sodium sulfate, filter, and concentrate; the residue is purified by silica gel column chromatography to obtain oily product, I-100'-1-a (12 grams...
Embodiment 1
[0261] 1-(3-fluoropropyl)-N-(4-((6R,7S)-7-isobutyl-8-methyl-6,7,8,9-tetrahydro-3H-pyrazolo [3,4-h]isoquinolin-6-yl)phenyl)azetidine-3-amine ( 1 )
[0262]
[0263] first step
[0264] (2S)-2-(((1H-indazol-4-yl)methyl)(methyl)amino)-1-(4-bromophenyl)-4-methylpentan-1-ol ( 1a )
[0265]
[0266] compound I-60-1 (839 mg), 4-(chloromethyl)-1H-indazole (ADV947321888 purchased from Advanced ChemBlocks Inc., 739 mg), potassium carbonate (1.8 g) and sodium iodide (39 mg) were mixed in an water in DMF. The reaction was stirred overnight at room temperature. Then, add ethyl acetate and water for extraction; separate the organic phase, wash the organic phase twice with dilute sodium chloride aqueous solution, dry over anhydrous sodium sulfate, filter, and concentrate; the residue is purified by silica gel column chromatography to obtain a yellow solid product 1a (950 mg). 1 H NMR (500MHz, DMSO-d6) δ (ppm): 13.00 (1H, s), 8.07 (1H, s), 7.50 (2H, d, J = 8.0Hz), 7.40 (1H, d, J...
Embodiment 2
[0288] N-(3,5-difluoro-4-((6S,7S)-7-isobutyl-8-methyl-6,7,8,9-tetrahydro-3H-pyrazolo[3,4 -h] isoquinolin-6-yl)phenyl)-1-(3-fluoropropyl)azetidine-3-amine ( 2 )
[0289]
[0290] first step
[0291] (2S)-2-(((1H-indazol-4-yl)methyl)(methyl)amino)-1-(4-chloro-2,6-difluorophenyl)-4-methylpentane -1-ol ( 2a )
[0292]
[0293] compound I-60-2 (1130 mg), 4-(chloromethyl)-1H-indazole (ADV947321888 purchased from Advanced ChemBlocks Inc., 630 mg), potassium carbonate (2.5 g) and sodium iodide (54 mg) were mixed in an water in DMF. The reaction was stirred overnight at room temperature. Then, ethyl acetate and water were added for extraction; the organic phase was separated, and the organic phase was washed twice with dilute sodium chloride aqueous solution, dried over anhydrous sodium sulfate, filtered, and concentrated; the residue was purified by silica gel column chromatography to obtain a yellow solid product 2a (1660 mg). 1 H NMR (500MHz, dmso-d6) δ (in ppm): 12.9...
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