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CAS No. : | 146093-46-1 | MDL No. : | MFCD04038459 |
Formula : | C12H24N2O2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | LBQDLHPFISVBRU-UHFFFAOYSA-N |
M.W : | 228.33 | Pubchem ID : | 1514258 |
Synonyms : |
|
Chemical Name : | 4-(Aminoethyl)-1-N-Boc-piperidine |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302 | Packing Group: | N/A |
GHS Pictogram: |
* 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 |
---|---|---|
89% | To a solution of compound 1 (112 mg, 0.568 mmol) and triphosgene (203 mg, 0.684 mmol) in AcOEt (6 mL) was slowly added triethylamine (0.120 mL, 0.861 mmol) at 0 C. After stirring at 0 C for 1 h, saturated aqueous NaHCO3 solution was added to the mixture. The mixture was extracted with AcOEt. The extract was washed with brine, dried over MgSO4, and concentrated under reduced pressure. The residue was dissolved in THF (6 mL), and then tert-butyl 4-(2-aminoethyl)piperidine-1-carboxylate (23, 130 mg, 0.567 mmol) and triethylamine (0.120 mL, 0.861 mmol) were added at 0 C. The mixture was allowed to warm to room temperature followed by stirring for 20 h. The reaction mixture was quenched with water and extracted with AcOEt. The organic layer was washed with brine, dried over MgSO4, and concentrated under reduced pressure. Purification by silica gel column chromatography gave the title compound as a white solid (228 mg, 89%). MS (ESI/APCI) m/z 352 [M-Boc+2H]+. 1H NMR (300 MHz, CDCl3) δ 1.08-1.22 (2H, m), 1.45 (9H, s), 1.50-1.57 (3H, m), 1.70 (2H, d, J = 12.8 Hz), 2.60-2.76 (2H, m), 3.02 (3H, s), 3.26 (2H, t, J = 8.7 Hz), 3.32-3.45 (2H, m), 3.91-4.19 (4H, m), 4.64 (1H, t, J = 5.5 Hz), 7.67 (1H, s), 7.74 (1H, dd, J = 8.7, 1.9 Hz), 8.10 (1H, d, J = 8.7 Hz). 13C NMR (100.6 MHz, CDCl3) δ 27.3, 28.5, 32.0, 33.8, 36.9, 38.2, 43.8, 44.9, 47.5, 79.4, 114.8, 123.6, 128.3, 131.1, 132.9, 148.8, 154.6, 154.9. Mp 162-163 C. Anal. Calcd for C22H33N3O5S·0.1AcOEt: C, 58.44; H, 7.40; N, 9.13. Found: C, 58.57; H, 7.48; N 8.87. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
51% | With benzotriazol-1-ol; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; In N,N-dimethyl-formamide; at 0 - 20℃; for 16h;Inert atmosphere; | [000365] Synthesis of tert-butyl 4-(2-(11-oxo-10, 11-dihydrodibenzo [b,J1 [1, 4j thiazepine8-carboxamido) ethyl) piperidine-1-carboxylate (449): To a stirred solution of compound 6 (40 mg, 0.14 mmol) in DMF (3 mL) under argon atmosphere were added EDCI.HC1 (42 mg, 0.22 mmol), HOBt (30 mg, 0.22 mmol), compound 448 (40 mg, 0.17 mmol), diisopropyl ethyl amine (0.05 mL, 0.29 mmol) at 0 C; warmed to RT and stirred for 16 h. The reaction was monitored by TLC; after completion of the reaction, the volatiles were removed in vacuo to obtain the crude. The crude was triturated with EtOAc: H20 (1: 5, 12 mL), filtered and the precipitate was dried in vacuo to afford compound 449 (36 mg, 51%) as white solid. TLC: 7% MeOH/ CH2C12 (R 0.7); 1H-NMR (DMSO-d6, 400 MHz): oe 10.76 (s, 1H), 8.47 (br s, 1H), 7.69-7.63 (m, 3H), 7.57-7.53 (m, 2H), 7.47 (t, J 8.8 Hz, 2H), 3.89 (d, J= 10.8 Hz, 2H), 3.26-3.25 (m, 2H), 2.67 (s, 3H), 1.64 (d,J 10.8 Hz, 2H), 1.42-1.41 (m, 2H), 1.37 (s, 9H), 0.97-0.95 (m, 2H). |
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