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CAS No. : | 19493-44-8 | MDL No. : | MFCD00024134 |
Formula : | C9H6ClN | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | MSQCQINLJMEVNJ-UHFFFAOYSA-N |
M.W : | 163.60 | Pubchem ID : | 140539 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | Packing Group: | N/A |
GHS Pictogram: |
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* 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 |
---|---|---|
To a solution of (2S, 4R)Fmoc-4-amino-1-boc-pyrrolidine-2-carboxylic acid (400 mg, 0.884 mmol) in acetonitrile (15 mL), five drops of pyrrolidine was added. The reaction mixture was stirred at rt for 3hr. Then it was concentrated and put on high vacuum togive crude 4-amino-1-boc-pyrrolidine-2-carboxylic acid. In another round-bottomed flask, a solution ofPd2dba3 (40 mg, 5% mol) and racemic-BINAP (56 mg, 10% mol) was stirred under nitrogen in degassed toluene (8mL) at rt forlh. Then1-chloroisoquinoline (216 mg, 1.326 mmol) and sodium t-butoxide (340 mg,3.536 mmol) were added and the reaction mixture was stirred for 30 min. Then 4-amino-l-boc-pyrrolidine-2-carboxylic acid was added and the reaction mixture was heated under reflux for lh. Water was added to quench the reaction and the aqueous layer was separated and filtered through filter paper. It was then concentrated and purified by Prep. HPLC to give coupled product as TFA salt. (165 mg, 40% yield) 'H NMR(CD30D, 400 MHz)8 1.44 (m, 9H), 2.51-2. 74 (m, 2H), 3.64 (m,1H), 4.01 (m,1H), 4.49 (m,1H), 4.64 (m,1H), 7.30 (d, J=6.85 Hz,1H), 7.58 (d, J=6.85 Hz,1H), 7.79 (m,1H), 7.91-7. 99 (m, 2H), 8.56 (d, J=8. 56 Hz,1H). LC-MS (retention time: 1.707 min. ), MS m/z 358(MH+). | ||
To a solution of (2S,4R) Fmoc-4-amino-1-boc-pyrrolidine-2-carboxylic acid (400 mg, 0.884 mmol) in acetonitrile (15 mL), five drops of pyrrolidine was added. The reaction mixture was stirred at rt for 3hr. Then it was concentrated and put on high vacuum to give crude 4-amino-1-boc-pyrrolidine-2-carboxylic acid. In another round-bottomed flask, a solution of Pd2dba3 (40 mg, 5% mol)and racemic-BINAP (56 mg, 10% mol) was stirred under nitrogen in degassed toluene (8 mL) at rt for 1 h. Then 1-chloroisoquinoline (216 mg, 1.326 mmol) and sodium t-butoxide (340 mg, 3.536 mmol) were added and the reaction mixture was stirred for 30 min. Then 4-amino-1-boc-pyrrolidine-2-carboxylic acid was added and the reaction mixture was heated under reflux for 1 h. Water was added to quench the reaction and the aqueous layer was separated and filtered through filter paper. It was then concentrated and purified by Prep. HPLC to give coupled product as TFA salt. (165 mg, 40% yield) 1H NMR (CD3OD, 400 MHz) δ 1.44 (m, 9H), 2.51-2.74 (m, 2H), 3.64 (m, 1H), 4.01 (m, 1H), 4.49 (m, 1H), 4.64 (m, 1H), 7.30 (d, J=6.85 Hz, 1H), 7.58 (d, J=6.85 Hz, 1H), 7.79(m, 1H), 7.91-7.99 (m, 2H), 8.56 (d, J=8.56 Hz, 1H). MS m/z 358 (MH+). | ||
To a solution of (2S,4R) Fmoc-4-amino-1-boc-pyrrolidine-2-carboxylic acid (400 mg, 0.884 mmol) in acetonitrile (15 mL), five drops of pyrrolidine was added. The reaction mixture was stirred at rt for 3 hr. Then it was concentrated and put on high vacuum to give crude 4-amino-1-boc-pyrrolidine-2-carboxylic acid. In another round-bottomed flask, a solution of Pd2 dba3 (40 mg, 5% mol) and racemic-BINAP (56 mg, 10% mol) was stirred under nitrogen in degassed toluene (8 mL) at rt for 1 h. Then 1-chloroisoquinoline (216 mg, 1.326 mmol) and sodium t-butoxide (340 mg, 3.536 mmol) were added and the reaction mixture was stirred for 30 min. Then 4-amino-1-boc-pyrrolidine-2-carboxylic acid was added and the reaction mixture was heated under reflux for 1 h. Water was added to quench the reaction and the aqueous layer was separated and filtered through filter paper. It was then concentrated and purified by Prep. HPLC to give coupled product as TFA salt. (165 mg, 40% yield) 1H NMR (CD3OD, 400 MHz) δ 1.44 (m, 9H), 2.51-2.74 (m, 2H), 3.64 (m, 1H), 4.01 (m, 1H), 4.49 (m, 1H), 4.64 (m, 1H), 7.30 (d, J=6.85 Hz, 1H), 7.58 (d, J=6.85 Hz, 1H), 7.79 (m, 1H), 7.91-7.99 (m, 2H), 8.56 (d, J=8.56 Hz, 1H). MS m/z 358 (MH+). |
With racemic-2,2'-bis(diphenylphosphino)-1,1'-binaphthyl; sodium t-butanolate;tris-(dibenzylideneacetone)dipalladium(0); In toluene; at 20℃; for 2.5h;Heating / reflux; | To a solution of (2S,4R) Fmoc-4-amino-1-boc-pyrrolidine-2-carboxylic acid (400 mg, 0.884 mmol) in acetonitrile (15 mL), five drops of pyrrolidine was added. The reaction mixture was stirred at rt for 3 hr. Then it was concentrated and put on high vacuum to give crude 4-amino-1-boc-pyrrolidine-2-carboxylic acid. In another round-bottomed flask, a solution of Pd2 dba3 (40 mg, 5% mol) and racemic-BINAP (56 mg, 10% mol) was stirred under nitrogen in degassed toluene (8 mL) at rt for 1 h. Then 1-chloroisoquinoline (216 mg, 1.326 mmol) and sodium t-butoxide (340 mg, 3.536 mmol) were added and the reaction mixture was stirred for 30 min. Then 4-amino-1-boc-pyrrolidine-2-carboxylic acid was added and the reaction mixture was heated under reflux for 1 h. Water was added to quench the reaction and the aqueous layer was separated and filtered through filter paper. It was then concentrated and purified by Prep. HPLC to give coupled product as TFA salt. (165 mg, 40% yield) 1H NMR (CD3OD, 400 MHz) δ 1.44 (m, 9H), 2.51-2.74 (m, 2H), 3.64 (m, 1H), 4.01 (m, 1H), 4.49 (m, 1H), 4.64 (m, 1H), 7.30 (d, J=6.85 Hz, 1H), 7.58 (d, J=6.85 Hz, 1H), 7.79 (m, 1H), 7.91-7.99 (m, 2H), 8.56 (d, J=8.56 Hz, 1H). MS m/z 358 (MH+). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
0.208 g (6.5 [MMOL)] of sodium hydride, at 75% by weight in liquid petroleum jelly, is added at a temperature in the region of [20C] under an argon atmosphere to a solution of 0.903 g (6.5 [MMOL)] of [3-METHOXYCARBONYL-4-METHYL-1 H-PYRROLE] in 20 cm3 of [DIMETHYLFORMAMIDE.] After stirring at a temperature in the region [OF 40C] for 0.3 hour, 1. 07 g (6.5 [MMOL)] of 1-chloroisoquinoline and 10 cm3 of dimethylformamide are added. After stirring at a temperature in the region of [120C] for 4 hours, the reaction mixture is poured into 200 cm3 of salt water and then extracted with 100 cm3 of ethyl acetate. The organic phase is partially concentrated under reduced pressure. 100 cm3 of sa . t water are added to the residue, which is then extracted with 50 cm3 of ethyl acetate. The organic phase is dried over anhydrous magnesium sulphate, filtered and then concentrated to dryness under reduced pressure (2. 7 kPa) to give a solid which is purified by silica gel chromatography [eluent : cyclohexane/dichloromethane/ethyl acetate [(60/36/4] by volume)]. After concentrating the fractions under reduced pressure (2.7 kPa), 1.5 g of [1-(ISOQUINOL-1-YL)-3-METHOXYCARBONYL-4-METHYL-1 H-PYRROLE ARE] [OBTAINED. MASS SPECTRUM (EL) : M/E 266 (M+. ), M/E 235.] |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
1.65 g (11.9 [MMOL)] of potassium carbonate are added at [25C] under an argon atmosphere to 0.900 g (4.75 [MMOL)] of [3-METHOXYCARBONYi-5-METHYL-1 H-INDOLE] in 10 cm3 of dimethyl sulphoxide. After stirring at [25C] for 0.5 hour, 0.677 cm3 (4.75 [MMOL)] of 1-chloroisoquinoline is added. After stirring at [100C] for 48 hours, the reaction mixture is cooled and diluted with 100 cm3 of ethyl acetate and then washed with 3 times 50 cm3 of water and 25 cm3 of saturated aqueous sodium chloride solution. The organic phase is dried over anhydrous magnesium sulphate, filtered and concentrated to dryness under reduced pressure (2.7 kPa) to give 1.50 g of a residue which is purified by flash chromatography [eluent : cyclohexane/ethyl acetate (8/2 by volume)]. After concentrating the fractions to dryness under reduced pressure (2.7 kPa), [1. 4 G OF 3-METHOXYCARBONYL-1- (ISOQUINOL-1-YL)-5-METHYL-1 H-INDOLE] are obtained in the form of a white solid melting at [142C.] |
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