Structure of 74420-05-6
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The BI-3802 was designed by Boehringer Ingelheim and could be obtained free of charge through the Boehringer Ingelheim open innovation portal opnMe.com, associated with its negative control.
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CAS No. : | 74420-05-6 |
Formula : | C8H7ClN2 |
M.W : | 166.61 |
SMILES Code : | C[N]2C1=NC=CC(=C1C=C2)Cl |
MDL No. : | MFCD11501283 |
InChI Key : | GYGRXUOVLHHEMC-UHFFFAOYSA-N |
Pubchem ID : | 12646040 |
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 |
---|---|---|
96.33% | To a stirred solution of 4-chloro-lH-pyrrolo[2,3-b]pyridine (1.0 g, 6.554 mmol, 1.0 eq) in DMF (20 mL) was added NaH (60%) (0.53 g, 13.188 mmol, 2.0 eq) at 0C. The resulting mixture was allowed to stirred at the same temperature for 5 min followed by ad dition of CH3I (0.45 mL, 7.209 mmol, 1.1 eq). The resulting mixture was stirred at rt for 15 min. The progress of reaction was monitored by LCMS. The reaction mixture was poured into ice cold water (50 mL), extracted with EtOAc (2 x 50 mL), the combined organic layers were washed with water (50 mL), with brine (50 mL), dried over Na2S04, concentrated to afford the desired compound (1.05 g, 96.33%) as brown liquid. LCMS: (M+l)+l67.0 | |
General Procedure for Preparation of XYInt01; To a solution of azaindole derivative X in hexamethylphosphoramide (HMPA) at 0 C., natrium hydrogen (NaH; 1.2 eq) was added and stirred further. After 1 hour, an alkyl halides Y such as methyl iodide, ethyl iodide, n-propyl bromide, iso-propyl bromide, n-butyl bromide, isobutyl bromide (1.5 eq, 1 h) or O-t-butyldimethylsilyl-2-chloroethanol (10 eq, 24 h) or O-t-butyldimethylsilyl-2-chloropropanol (1.5 eq) was added and stirred. After completion of the reaction (monitored by thin layer chromatography (TLC)), the reaction was quenched by ice cold water and extracted with ethyl acetate (EtOAc; 3×). The organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to leave a residue of crude product. The crude product was purified by column chromatography to afford XYInt01 (75-85% yield).; Example 264; 4-chloro-N-(cycloheptylmethyl)-1-methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxamide; Synthesised according to the procedure disclosed in Example 2 where X is 4-chloro-7-azaindole, Y is methyl iodide, and Z is cycloheptylmethyl amine. Formula: C17H22ClN3O; Molecular Weight: 319.8; Mass/charge ratio: 319.1 (100.0%), 321.1 (32.4%), 320.1 (19.5%), 322.1 (6.3%), 321.2 (1.6%); Elemental analysis: C, 63.84; H, 6.93; Cl, 11.08; N, 13.14; O, 5.00. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
General Procedure for Preparation of XYInt02; To a solution of anhydrous AlCl3 (5 eq) in dry dimethylformamide (DMF) at 0 C. (20 mL) a solution of XYInt01 in dimethylformamide and the mixture was stirred further. After 1 hour, trichloroacetyl chloride (5 eq) was added and the mixture was allowed to warm to room temperature. After completion of the reaction (monitored by TLC), the reaction was quenched with ice-cold water and extracted with dimethylformamide (3×). The organic layer was dried over anhydrous Na2SO4 and concentrated under reduced pressure to leave a residue which was purified by column chromatography to afford XYInt02 (60-70% yield).; Example 264; 4-chloro-N-(cycloheptylmethyl)-1-methyl-1H-pyrrolo[2,3-b]pyridine-3-carboxamide; Synthesised according to the procedure disclosed in Example 2 where X is <strong>[74420-05-6]4-chloro-7-azaindole</strong>, Y is methyl iodide, and Z is cycloheptylmethyl amine. Formula: C17H22ClN3O; Molecular Weight: 319.8; Mass/charge ratio: 319.1 (100.0%), 321.1 (32.4%), 320.1 (19.5%), 322.1 (6.3%), 321.2 (1.6%); Elemental analysis: C, 63.84; H, 6.93; Cl, 11.08; N, 13.14; O, 5.00. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With caesium carbonate; 4,5-bis(diphenylphos4,5-bis(diphenylphosphino)-9,9-dimethylxanthenephino)-9,9-dimethylxanthene; bis(dibenzylideneacetone)-palladium(0); In 1,4-dioxane; at 110℃; for 0.0833333h;Inert atmosphere; | To 100 mg B12.1 (commercially available, 0.60 mmol) was added 117 mg (1.5 eq) H2NBoc, 393 mg Cs2C03 (2 eq), 52 mg Xantphos (0.15 eq) and 27 mg Pd2(dba)3 (0.05 eq). To the above mixture was added degassed (Ar) dioxane. The suspension was further degassed for 5 minutes and then heated at 110C under an Ar atmosphere overnight. The reaction mixture was cooled and the dioxane was removed in vacuo. The residue was dissolved in DCM and then the DCM layer was washed with water. The DCM layer was concentrated to give crude B12.2. To crude B12.2 was added 4.0 M HCI in dioxane. The reaction mixture was stirred at room temperature for 3 hours and then the resulting solid was filtered, washed with Et20 and dried to give B12.3. To 264 mg (1.51 mmol) B5.1 in 2 mL DMF and 0.30 mL DIEA was added 2.5 mL of a ~1 mM stock solution of B51F in NMP. The reaction mixture was stirred for 15 minutes and then H20 was added. EtOAc utilized to extract product. Organic layer separated and then washed with 5% NaHC03,H20, and brine. EtOAc dried over MgS04 and concentrated. An Isco silica column (0 to 5% EtOAc in DCM) was run and product B12.4 was isolated (245 mg). To 100 mg B12.4 and B12.3 (89 mg) in 5 mL dioxane was added Cs2C03 (375 mg), rac-BINAP (52 mg), and Pd(OAc)2 (17 mg). The reaction mixture was degassed for 5 minutes and then heated at 90C for 1 hour and then at 110C for 30 minutes. The reaction was cooled and concentrated. DCM was added and the suspension was filtered. The filtrate was washed with H20 and was concentrated. An Isco silica column was run on the crude residue (0 to 7% MeOH in DCM) to afford pure B12.5. Nitrile to amide conversion (as detailed in Scheme 5) and Cbz-deprotection (as detailed in Scheme 7) afforded the title compound. MS found for C17H20F2N8O as (M+H)+391.2. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In diphenylether; at 190℃; for 1h; | General procedure: 4-chloro-1H-pyrrolo[2,3-b]pyridine 9 (9.1g, 60mmol) or <strong>[74420-05-6]4-chloro-1-methyl-1H-pyrrolo[2,3-b]pyridine</strong> 10 (10.0g, 60mmol) reacted with 4-nitrophenol 11a (12.5g, 90mmol) or 2-fluoro-4-nitrophenol 11b (14.1g, 90mmol) in diphenyl ether at 190C for 1h respectively. The mixture was cooled to 60C and poured into ethyl acetate (350mL) in an ice bath for 30-50min. The mixture was filtered off and dried to give light yellow solid 12a-d. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In diphenylether; at 190℃; for 1h; | General procedure: 4-chloro-1H-pyrrolo[2,3-b]pyridine 9 (9.1g, 60mmol) or <strong>[74420-05-6]4-chloro-1-methyl-1H-pyrrolo[2,3-b]pyridine</strong> 10 (10.0g, 60mmol) reacted with 4-nitrophenol 11a (12.5g, 90mmol) or 2-fluoro-4-nitrophenol 11b (14.1g, 90mmol) in diphenyl ether at 190C for 1h respectively. The mixture was cooled to 60C and poured into ethyl acetate (350mL) in an ice bath for 30-50min. The mixture was filtered off and dried to give light yellow solid 12a-d. |