Structure of 1118-69-0
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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. : | 1118-69-0 |
Formula : | C5H11NO |
M.W : | 101.15 |
SMILES Code : | CC(NC(C)C)=O |
MDL No. : | MFCD00085718 |
InChI Key : | PDUSWJORWQPNRP-UHFFFAOYSA-N |
Pubchem ID : | 136874 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302 |
Precautionary Statements: | P280-P305+P351+P338 |
Num. heavy atoms | 7 |
Num. arom. heavy atoms | 0 |
Fraction Csp3 | 0.8 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 1.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 29.15 |
TPSA ? Topological Polar Surface Area: Calculated from |
29.1 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.55 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
0.34 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.53 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.49 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.18 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.62 |
Log S (ESOL):? ESOL: Topological method implemented from |
-0.55 |
Solubility | 28.6 mg/ml ; 0.282 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-0.52 |
Solubility | 30.9 mg/ml ; 0.305 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-1.01 |
Solubility | 9.82 mg/ml ; 0.0971 mol/l |
Class? Solubility class: Log S scale |
Soluble |
GI absorption? Gatrointestinal absorption: according to the white of the BOILED-Egg |
High |
BBB permeant? BBB permeation: according to the yolk of the BOILED-Egg |
Yes |
P-gp substrate? P-glycoprotein substrate: SVM model built on 1033 molecules (training set) |
No |
CYP1A2 inhibitor? Cytochrome P450 1A2 inhibitor: SVM model built on 9145 molecules (training set) |
No |
CYP2C19 inhibitor? Cytochrome P450 2C19 inhibitor: SVM model built on 9272 molecules (training set) |
No |
CYP2C9 inhibitor? Cytochrome P450 2C9 inhibitor: SVM model built on 5940 molecules (training set) |
No |
CYP2D6 inhibitor? Cytochrome P450 2D6 inhibitor: SVM model built on 3664 molecules (training set) |
No |
CYP3A4 inhibitor? Cytochrome P450 3A4 inhibitor: SVM model built on 7518 molecules (training set) |
No |
Log Kp (skin permeation)? Skin permeation: QSPR model implemented from |
-6.68 cm/s |
Lipinski? Lipinski (Pfizer) filter: implemented from |
0.0 |
Ghose? Ghose filter: implemented from |
None |
Veber? Veber (GSK) filter: implemented from |
0.0 |
Egan? Egan (Pharmacia) filter: implemented from |
0.0 |
Muegge? Muegge (Bayer) filter: implemented from |
1.0 |
Bioavailability Score? Abbott Bioavailability Score: Probability of F > 10% in rat |
0.55 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
0.0 alert: heavy_metal |
Leadlikeness? Leadlikeness: implemented from |
No; 1 violation:MW<1.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
1.0 |
* 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 |
---|---|---|
100% | With triethylamine; In dichloromethane; at 20℃;Cooling with ice; | In an ice bath, 9 acetic anhydride (16.15 mL) was slowly added into the solution of 10 triethylamine (TEA, 23.58 mL) and 11 isopropylamine (10 g) in 12 dichloromethane (100 mL), and after the addition was completed, the reaction was stirred overnight at rt. The dichloromethane was removed under reduced pressure. 13 Diethyl ether was added, followed by a large amount of potassium carbonate, and the mixture was stirred overnight. The solid was filtered, and the filtrate was concentrated under reduced pressure to give 16.0 g a colorless clear oil, yield: 100%. LC-MS(APCI): m/z=102.1 (M+1); 1H NMR (500 MHz, CDCl3) (delta/ppm) 4.14-3.99 (m, 1H), 1.94 (s, 3H), 1.13 (d, J=6.6 Hz, 6H). |
89.5% | With potassium carbonate; triethylamine; In dichloromethane; at 0 - 20℃; for 12h; | Preparation example 4: Preparation of N-isopropylacetamide Isopropylamine (5.0 g, 84.7 mmol) and triethylamine (12.8 g, 126.7 mmol) were dissolved in dichloromethane (50 mL), and the temperature was cooled to 0C. Acetic anhydride (17.3 g, 169.4 mmol) was added slowly. After the addition, the mixture was warmed up to room temperature, and reacted for 12 h. The solvent was removed by reduced pressure distillation. To the residue, acetic ether (100 mL) and potassium carbonate (20 g) were added. After stirring for 6 h, the mixture was filtrated under suction, and the solvent was removed by reduced pressure distillation to get the oil title compound (7.65 g, yield: 89.5%). |
With triethylamine; In dichloromethane; at 0 - 20℃; | Preparation 26N-Isopropyl-acetamideAdd TEA (23.58 mL) to a solution of 2-propanamine (10 g) in DCM (100 mL) at 0 C. Then, carefully add drop wise acetic acid anhydride (16.15 mL). Stir at RT overnight. Remove the solvent under vacuum, dilute with ethyl ether (ether) and filter the solid. Remove the solvent under vacuum. Dilute the oil with ether, add potassium carbonate and stir overnight at RT. Filter the solid and remove the solvent under vacuum to afford 15.62 g of the title compound. NMR (CDCl3) 4.06 (m, 1H), 1.94 (s, 3H), 1.14 (d, 6H). |
With Silica-bound 1-hydroybenzotriazole; In dichloromethane; for 3h; | To the activated polymer-bound HOBt (0.25 g) in the chosen solvent (6 mL), amine (0.75 equiv) is added and rocked for four hours in the case of activated P-HOBt, and 3 hours with activated Si-HOBt. Then the suspension was filtered and washed with the chosen solvent (3 × 5 mL). Both the filtrate and the washings were collected in a pre-weighed round bottom flask and concentrated to obtain the amide. | |
27.8 g | With triethylamine; In dichloromethane; at 5 - 20℃; | 2-isopropylamine (20 g, 338.4 mmol) under ice-Triethylamine (34.6 g, 341.8 mmol) was successively dissolved in dichloromethane (150 mL)Acetic anhydride (35.2 g, 345.1 mmol) was slowly added dropwise to the reaction flask through a constant pressure dropping funnel,Control the internal temperature less than 5 .Plus,The reaction flask was transferred to room temperature and stirred overnight.The solvent was removed by concentration under reduced pressure,After dilution with methyl tert-butyl ether (200 mL), potassium carbonate (50 g) was added,And the mixture was stirred at room temperature for 1 hour.Decompression pumping,The filtrate was concentrated under reduced pressure to give the compound of formula VII-1 (27.8 g)For the light yellow liquid. |
27.8 g | With triethylamine; In dichloromethane; at 5 - 20℃; | 2-isopropylamine (20 g, 338.4 mmol) and triethylamine (34.6 g, 341.8 mmol) were sequentially dissolved in dichloromethane(150 mL). Acetic anhydride (35.2 g, 345.1 mmol) was slowly added dropwise to the reaction flask through a constant-pressure dropping funnel. ControlSystem temperature is less than 5 . After the addition was completed, the reaction flask was transferred to room temperature and stirred overnight. The solvent was removed by concentration under reduced pressure with methyl tert-butylAfter diluting with ether (200 mL), potassium carbonate (50 g) was added and stirred at room temperature for 1 hour. Vacuum filtration, the filtrate was concentrated under reduced pressureThe compound of formula XIII-1 (27.8 g) was a light yellow liquid |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With hydroxyapatite supported copper(I) oxide; In acetonitrile; at 50℃; for 0.1h; | General procedure: To a mixture of amine (1 mmol), acetyl chloride (1 mmol)in acetonitrile (5 mL) were added hydroxyapatite ?Cu2O(0.1 g) under air atmosphere. The reaction mixture wasrefluxed at 50 °C for an appropriate time. The progress ofthe reaction was monitored through TLC. Upon completionof the reaction, the reaction mixture was cooled toroom temperature and filtered. The residue was washedwith water followed by EtOAc (3 × 10 mL). The productwas obtained after the removal of solvent under reducedpressure followed by crystallization from pet ether orEtOAc:pet ether or passing through column of silica andelution with EtOAc:pet ether. |
With potassium carbonate; In ethyl acetate; at 0 - 20℃;Industry scale; | c. N-Isopropyl-acetamideAdd potassium carbonate (28 kg) to a solution of 2-propanamine (12 kg) in ethyl acetate (108 kg) at <20° C. Cool the mixture to 5-0° C. and add acetyl chloride (16.7 kg) at about 2-3 kg/h. Stir until complete by gas chromatography. Quench the reaction with water (0.8 kg) and filter the reaction mixture and concentrate to afford 13.4 kg of the title compound. NMR (CDCl3) 4.06 (m, 1H), 1.94 (s, 3H), 1.14 (d, 6H). | |
13.4 kg | With potassium carbonate; In ethyl acetate; at 0 - 5℃;Large scale; | Add potassium carbonate (28 kg) to a solution of 2-propanamine (12 kg) in ethyl acetate (108 kg) at <20 °C. Cool the mixture to 5-0 °C and add acetyl chloride (16.7 kg) at about 2-3 kg/hour. Stir until complete by gas chromatography. Quench the reaction with water (0.8 kg) and filter the reaction mixture and concentrate to afford 13.4 kg of the title compound. NMR (CDC13) 4.06 (m, 1H), 1.94 (s, 3H), 1.14 (d, 6H). |