Structure of 486422-05-3
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CAS No. : | 486422-05-3 |
Formula : | C14H22BNO4S |
M.W : | 311.20 |
SMILES Code : | O=S(C1=CC=CC(B2OC(C)(C)C(C)(C)O2)=C1)(N(C)C)=O |
MDL No. : | MFCD07368237 |
InChI Key : | YFEWVSRTWWHXFP-UHFFFAOYSA-N |
Pubchem ID : | 16414207 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
57% | With water; sodium hydrogencarbonate;tetrakis(triphenylphosphine) palladium(0); In N,N-dimethyl-formamide; at 100.0℃; for 15.0h; | To a solution of Compound 1 (lOOmg, 0.228mmol) and 3-(4,4,5,5-tetramethyl- l,3,2-dioxaborolan-2-yl)-N,N-dimethylbenzenesulfonamide (106mg, 0.34mmol) in DMF (3mL) were added 2M aq. NaHCO3 (350μL) and Pd[PPh3J4 (26mg, 0.02mmol). The reaction was heated at 10O 0C for 15 h, allowed to cool, and then diluted with water (2OmL). The resultant precipitate was collected by filtration and air-dried. The crude product was re-dissolved in hot methanol/DMF, filtered hot, and then sufficient water was added to cause the solution to become cloudy. After cooling to room temperature and then further in an ice-bath, the solid was collected by filtration, washed with water and air-dried, followed by further drying under reduced pressure. This provided Compound 12 as a yellow/brown solid (65mg, 57%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
30% | With potassium phosphate; palladium diacetate; catacxium A; In butan-1-ol; at 50.0℃; for 16.0h;Inert atmosphere; | A solution of 8-iodo-N-[(l S)-2-methoxy-l-methyl-ethyl]-5-tetrahydropyran-4-yloxy- pyrido [4,3-d]pyrimidin-2-amine (100 mg, 225 umol, 1 eq), N,N-dimethyl-3-(4,4,5,5- tetramethyl-l,3,2-dioxaborolan-2-yl)benzenesulfonamide (106 mg, crude), K3PO4 (143 mg, 675 umol, 3 eq), Pd(OAc)2 (5 mg, 23 umol, 0.1 eq) and bis(l-adamantyl)-butylphosphane (8 mg, 23 umol, 0.1 eq) in n-BuOH (2 mL) was degassed and purged with N2 3 times, and then the mixture was stirred at 50 C for 16 hours under N2 atmosphere. On completion, the mixture was diluted with ethyl acetate (20 mL) and water (30 mL). The mixture was extracted with ethyl acetate (2 x 30 mL). The combined organic layer was washed with water (30 mL) and brine (2 x 30 mL), dried over Na2S04 and concentrated in vacuo. The residue was purified by prep-HPLC. The eluent was concentrated to remove organic solvent, and the aqueous solution was lyophilized to give the title compound (33.6 mg, 30% yield) as a white solid. The title compound was confirmed by 1H NMR and LCMS. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; potassium acetate; In 1,4-dioxane; at 90.0℃; for 12.0h;Inert atmosphere; | To a stirred solution of 3-bromo-N,N-dimethylbenzene-l-sulfonamide (0.350 g, 1.33 mmol) and 4,4,5,5-tetramethyl-2-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)-l,3,2-dioxaborolane (0.505 g, 1.99 mmol) in 1,4-dioxane (5 mL) was added potassium acetate (0.263 g, 2.65 mmol). Then the reaction mixture was degassed under argon gas for 10 minutes. This was followed by the addition of [1,1'- Bis(diphenylphosphino)ferrocene]dichloropalladium(II) (0.097 g, 0.133 mmol) and the reaction mixture was heated to 90 C for 12 hours. After completion of the reaction, the reaction mixture was poured into water (20 ml) and extracted with ethyl acetate (2 x20 ml). The organic phase was washed with water, brine solution and dried over anhydrous sodium sulfate, concentrated in vacuo to afford N, A-dimcthyl-3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenes sulfonamide as a brown solid ( 0.2 g, crude); The crude material was used as such for next step without column purification. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
28% | With tetrakis(triphenylphosphine) palladium(0); potassium carbonate; In 1,4-dioxane; at 90.0℃; for 6.0h; | A stirring solution of compound M-2 (2.20 g, 5.04 mmol), aqueous potassium carbonate (2.0 M, 12.6 mL, 25.2 mmol) and compound M-3 (the synthesis has been described in patent WO 2017/136870 Al) (1.73 g, 5.55 mmol) in dioxane (36 mL) was degassed by passing though it a stream of N2gas for 10 mins. Tetrakis(triphenylphosphine)palladium (0) (583 mg, 0.50 mmol) was then added under nitrogen, and the reaction mixture heated at 90 C for 6 h. The reaction mixture was cooled to rt and diluted with CH2Cl2 (60 mL). The mixture was then filtered through Celite and the filtrate was evaporated to dryness. The crude residue was purified over silica gel (40 g), eluting with 20 - 90% ethyl acetate in hexanes to afford compound M-4 (690 mg, 28%) as a white solid.1H NMR (300 MHz, CDCl3) δ ppm: 8.08 (d, J = 8.9 Hz, 1H), 7.82 (dq, J = 4.4, 2.0 Hz, 2H), 7.73 - 7.66 (m, 2H), 7.51 (d, J = 2.0 Hz, 1H), 7.41 (dd, J = 8.8, 2.0 Hz, 1H), 2.81 (s, 6H), 2.61 (s, 3H), 1.73 (s, 9H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
40% | With (1,1'-bis(diphenylphosphino)ferrocene)palladium(II) dichloride; caesium carbonate; In 1,4-dioxane; water; at 90.0℃; for 18.0h;Inert atmosphere; | To a stirred solution of N,N-dimethyl-3-(4,4,5,5-tetramethyl-l,3,2-dioxaborolan-2-yl)benzene- 1-sulfonamide (0.2 g, 0.643 mmol) and 5-[(6-bromopyridin-2-yl)oxy]-2-fluorophenol ( 0.183 mg, 0.643 mmol) in 1,4-dioxane and water (4 mL, 1: l)was added cesium carbonate (0.312 g, 1.61 mmol). Then the reaction mixture was degassed under argon gas for 10 minutes. This was followed by the addition of [1,1-Bis (diphenylphosphino)ferrocene]dichloropalladium(II) (0.047 g, 0.064 g mmol) and the reaction mixture was heated to 90 C for 18 hours. After completion of the reaction, the reaction mixture was poured into water (20 ml) and extracted with ethyl acetate (2 x20 ml). The organic phase was washed with water, brine solution and dried over anhydrous sodium sulfate, concentrated under vacuo. The crude material was purified by flash column chromatography to afford 3-(6-(4-fluoro-3- hydroxyphenoxy)pyridin-2-yl)-N,N-dimethyl benzene sulfonamide (0.1 g, 40%) as a white solid; LCMS (ES) m/z calcd. for C19H17FN204S, 388.4; found, 389.0 (M+H); 1HNMR (400 MHz, DMSO-7,): δ 10.09 (s, 1H), 8.27 (d, 7= 7.6 Hz, 1H), 8.17 (s, 1H), 7.98 (t, 7= 7.8 Hz 1H), 7.83 (d, 7= 7.2 Hz, 1H), 7.783-7.70 (m 2H), 7.18 (dd, 7= 11.0 Hz and 8.8 Hz, 1H), 7.02 (d, 7= 8.0 Hz, 1H), 6.77 (dd, 7= 7.6 Hz and 2.8 Hz, 1H), 6.70 (m, 1H), 2.56 (m, 6H). |
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