Structure of 141871-02-5
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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. : | 141871-02-5 |
Formula : | C13H17NO4 |
M.W : | 251.28 |
SMILES Code : | O=C(O)C1=CC=CC=C1N(C(OC(C)(C)C)=O)C |
MDL No. : | MFCD00237567 |
InChI Key : | UXLICAHPTWWCII-UHFFFAOYSA-N |
Pubchem ID : | 2757235 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P233-P260-P261-P264-P270-P271-P280-P301+P312-P302+P352-P304-P304+P340-P305+P351+P338-P312-P321-P330-P332+P313-P337+P313-P340-P362-P403-P403+P233-P405-P501 |
* 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 |
---|---|---|
35% | With benzotriazol-1-yloxyl-tris-(pyrrolidino)-phosphonium hexafluorophosphate; triethylamine; In dichloromethane;Inert atmosphere; | A solution of 7a (177 mg, 1.17 mmol), pyBOP (582 mg,1.17 mmol), and Et3N (179 mL, 1.28 mmol) in DCM (5 mL) was stirred for 15 min to which was added L-cystine dimethyl ester dihydrochloride (200 mg, 0.586 mmol). The mixture was stirred overnight under an inert atmosphere. The mixture was concentrated under vacuum, and taken up in EtOAc (10 mL). Theo rganic layer was was hed with H2O (10mL), NaHCO3 (10 mL), brine (10 mL), dried over MgSO4, filtered, and concentratedunder vacuum. The product was purified using column chromatography with EtOAc-petroleum eluent, which afforded the title compound as awhite amorphous solid (300 mg, 35% yield). H (400MHz, CDCl3) 7.70 (d,J7.6, 1H), 7.45 (td,J7.7, 1.6,1H), 7.40 -7.07 (m, 4H), 5.02 (s, 1H), 3.76 (s, 3H), 3.29 (m,2H), 3.19 (s, 3H), 1.33 (s, 9H). C (100MHz, CDCl3) 170.5, 141.4,131.7, 129.5, 128.1, 127.3, 80.8, 52.8, 51.9, 40.5, 29.7, 28.2. HRMS (ESI) m/z757.2507; calcd for C34H46N4O10S2Na [MNa] 757.2548. nmax/cm13337, 2960, 1743, 1664, 1152, 730 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With dmap; triethylamine; In acetonitrile; at 20℃; for 2h; | General procedure: To a solution of anthranilic acid (0.5g, 3.64mmol) in acetonitrile (10mL) were added TEA (0.73g, 7.28mmol), Boc anhydride (0.95g, 4.37mmol), and DMAP (0.044g, 0.36mmol). The mixture was stirred at rt for 2.0 h. CMPI (1.1g, 4.36mmol) was added in one lot to the reaction mixture. The reaction mixture was stirred at rt for 10 min. 1N HCl (20mL) was added to the reaction and the mixture was extracted two times with EtOAc. The combined organic layers were washed with brine, dried with anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The resulting solid was crystallized in DCM and MeOH to afford 0.56g (95%) of 1H-benzo[d][1,3]oxazine-2,4-dione as an off white solid. 1H NMR (400MHz, DMSO) δ 7.14-7.16 (d, J=8Hz, 1H), 7.23-7.27 (t, J=16Hz,1H), 7.72-7.74 (t, J=8Hz, 1H), 7.90-7.92 (d, J=8Hz,1H), 11.72 (s, 1H). 13C NMR (100MHz, DMSO-d6) δ 110.6, 115.7, 123.9, 129.3, 137.3, 141.8, 147.5, 160.3. IR (thin film) 3461, 3173, 2937, 1984, 1753, 1604, 1486, 1358, 1258, 1138, 1009, 765, 673, 492. ES-MS (m/z): 161.8 (M+-H). MP (C): 236. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
General procedure: To a solution of anthranilic acid (0.5g, 3.64mmol) in acetonitrile (10mL) were added TEA (0.73g, 7.28mmol), Boc anhydride (0.95g, 4.37mmol), and DMAP (0.044g, 0.36mmol). The mixture was stirred at rt for 2.0 h. CMPI (1.1g, 4.36mmol) was added in one lot to the reaction mixture. The reaction mixture was stirred at rt for 10 min. 1N HCl (20mL) was added to the reaction and the mixture was extracted two times with EtOAc. The combined organic layers were washed with brine, dried with anhydrous Na2SO4, filtered, and concentrated under reduced pressure. The resulting solid was crystallized in DCM and MeOH to afford 0.56g (95%) of 1H-benzo[d][1,3]oxazine-2,4-dione as an off white solid. 1H NMR (400MHz, DMSO) δ 7.14-7.16 (d, J=8Hz, 1H), 7.23-7.27 (t, J=16Hz,1H), 7.72-7.74 (t, J=8Hz, 1H), 7.90-7.92 (d, J=8Hz,1H), 11.72 (s, 1H). 13C NMR (100MHz, DMSO-d6) δ 110.6, 115.7, 123.9, 129.3, 137.3, 141.8, 147.5, 160.3. IR (thin film) 3461, 3173, 2937, 1984, 1753, 1604, 1486, 1358, 1258, 1138, 1009, 765, 673, 492. ES-MS (m/z): 161.8 (M+-H). MP (C): 236. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | Add EDCI (4 mmol), dichloromethane, acid 10 (4 mmol), triethylamine (8 mmol), dimethyl azide 2 (1 mmol) to a round bottom flask under stirring at room temperature. Triphenylphosphine (8 mmol) was stirred at 50 C for 5 h. After completion of the reaction, DBU (12 mmol) and bromotrichloromethane (10 mmol) were sequentially added to the mixture, and the mixture was stirred for 3 h. After the reaction was completed, an equal volume of a saturated ammonium chloride solution was added, and the mixture was extracted with dichloromethane (3×15 ml). The organic layer was dried over anhydrous sodium sulfate and evaporated to dryness. Column gave compound 11 as a pale yellow solid, yield 61%. |
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