Structure of 120277-39-6
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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. : | 120277-39-6 |
Formula : | C8H9NO |
M.W : | 135.16 |
SMILES Code : | OC/C=C/C1=CC=CN=C1 |
MDL No. : | MFCD03425627 |
InChI Key : | RSFCHWDTMRVOJD-DUXPYHPUSA-N |
Pubchem ID : | 5861913 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | 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 |
---|---|---|
[0364] Step B: [0365] To the solution of the crude product from Step A (1.02 g, 6.3 mmol) in CH2Cl2 (50 mL) at -78° C. was added diisobutylaluminum hydride (1.0 M in CH2Cl2, 16 mL). The reaction was stirred at -78° C. for 10 min before being quenched with MeOH (5 mL) followed by 2.5 N aq. NaOH (50 mL). The mixture was extracted with CH2Cl2 (50 mL.x.2). The resulting solution was washed with sat. aq. NaCl, dried over MgSO4 and concentrated. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
42% | With manganese(IV) oxide; In dichloromethane; at 20℃; for 16.0h; | [0366] Step C: [0367] To the solution of the crude product from Step B (0.5 g, 3.8 mmol) in CH2Cl2 (20 mL) was added MnO2 (2.5 g). The mixture was stirred at room temperature for 16 h. Filtration, concentration and purification by chromatography (silica gel, 98:2 dichloromethane/methanol) gave 0.37 g (42percent) of the title compound as white solid MS134 (M+H)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With 4-methyl-morpholine; sodium borohydrid; isobutyl chloroformate; In 1,2-dimethoxyethane; water; | PREPARATION 5 Isobutyl chloroformate (4.4 ml) was added dropwise to a suspension of (E)-3-(3-pyridyl)acrylic acid (5.0 g) and N-methylmorpholine (4.05 ml) in 1,2-dimethoxyethane (50 ml) under -18° C. After being stirred at the same temperature for 0.5 hour, a solution of sodium borohydride (1.86 g) in water (10 ml) was added to the mixture all at once. The resulting mixture was poured into water and extracted with ethyl acetate. The extract was washed with brine and dried over magnesium sulfate, and evaporated under reduced pressure. The residue was purified by column chromatography on silica gel using a mixed solvent of hexane and ethyl acetate as eluent. The fractions containing the objective compound were collected and evaporated under reduced pressure to give (E)-3-(3-pyridyl)-2-propen-1-ol (1.0 g) as an oil. NMR (CDCl3, delta): 4.40 (2H, d, J=4.0Hz), 6.52 (1H, dt, J=4.0, 16.1Hz, trans), 6.65 (1H, d, J=16.1Hz, trans), 7.45 (1H, dd, J=5.6, 8.0Hz), 7.89 (1H, d, J=8.0Hz), 8.44 (1H, d, J=15.6Hz), 8.58 (1H, s) |
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