Structure of Methyl 3-Methoxyacrylate
CAS No.: 34846-90-7
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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. : | 34846-90-7 |
Formula : | C5H8O3 |
M.W : | 116.12 |
SMILES Code : | O=C(OC)/C=C/OC |
MDL No. : | MFCD00128206 |
Boiling Point : | No data available |
InChI Key : | AUTCCPQKLPMHDN-ONEGZZNKSA-N |
Pubchem ID : | 5323651 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H315-H319-H227 |
Precautionary Statements: | P501-P210-P264-P280-P302+P352-P370+P378-P337+P313-P305+P351+P338-P362+P364-P332+P313-P403+P235 |
Num. heavy atoms | 8 |
Num. arom. heavy atoms | 0 |
Fraction Csp3 | 0.4 |
Num. rotatable bonds | 3 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 28.05 |
TPSA ? Topological Polar Surface Area: Calculated from |
35.53 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.86 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
0.33 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.32 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
-0.09 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.16 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.52 |
Log S (ESOL):? ESOL: Topological method implemented from |
-0.57 |
Solubility | 31.3 mg/ml ; 0.269 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-0.64 |
Solubility | 26.6 mg/ml ; 0.229 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-0.12 |
Solubility | 88.1 mg/ml ; 0.759 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 |
No |
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 |
-6.77 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 |
0.56 |
PAINS? Pan Assay Interference Structures: implemented from |
0.0 alert |
Brenk? Structural Alert: implemented from |
2.0 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) |
2.0 |
* 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 |
---|---|---|
51% | With triethylamine; In dichloromethane; at 20℃; | (Step B-4) Synthesis of methyl 3-(4-chloromethylphenyl)isoxazole-4-carboxylate N-Hydroxy-4-chloromethylbenzenecarboxyimidoyl chloride (15.27 g, 74.82 mmol) was dissolved in dichloromethane (300 ml), methyl 3-methoxyacrylate (10.43 g, 89.82 mmol) was added, and triethylamine (21 ml, 151 mmol) was slowly added dropwise. The mixture was stirred overnight at room temperature. Water was added, and the mixture was extracted with dichloromethane. The extract was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the obtained crude product was purified by silica gel chromatography (hexane:ethyl acetate=5:1) to give the title compound (9.67 g, 51percent). 1H-NMR(300 MHz, CDCl3) delta=3.84(3H, s), 4.63(2H, s), 7.49(2H, d, J=6.9 Hz), 7.70(2H, d, J=6.9 Hz), 9.01(1H, s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
58% | With triethylamine; In dichloromethane; at 20℃; | (Step 4) Synthesis of methyl 3-(4-(2-chloroethyl)phenyl)isoxazole-4-carboxylate N-Hydroxy-4-(2-chloroethyl)benzenecarboxyimidoyl chloride (2.07 g, 9.48 mmol) was dissolved in dichloromethane (5 ml), methyl 3-methoxyacrylate (1.32 g, 11.37 mmol) was added, and triethylamine (1.92 g, 18.97 mmol) was slowly added dropwise. The mixture was stirred overnight at room temperature. Water was added, and the mixture was extracted with dichloromethane. The extract was washed with saturated brine and dried over anhydrous sodium sulfate. The solvent was evaporated under reduced pressure, and the obtained crude product was purified by silica gel chromatography (hexane:ethyl acetate=5:1) to give the title compound (1.46 g, 58percent). MS(ESI) m/z 266 (M+H)+. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With sodium chloride; sodium t-butanolate; In tetrahydrofuran; | Example 3 4-(2-BROMO-PHENYL)-4-CYANO-BUT-3-ENOIC ACID METHYL ESTER A solution of 2-bromo-phenylacetonitrile (6.62 mL, 51.0 mmol) and methyl-3-methoxyacrylate (5.32 mL, 49.5 mmol) in tetrahydrofuran (10 ml) was added to a suspension of sodium tert-butoxide (5.05 g, 51.0 mmol) in tetrahydrofuran (70 mL) at 0° C. over 10 minutes under a stream of nitrogen. The reaction mixture was warmed to room temperature and after 15 minutes diluted with methyl tert-butyl ether (240 mL). To the mixture was added 0.2 N aqueous citric acid until the aqueous layer had a pH of 2 (80 mL). The organic layer was separated and washed with a saturated aqueous solution of sodium chloride (2*80 mL), dried over anhydrous sodium sulfate, filtered through a pad of Celite and silica (4:1) and concentrated in vacuo to provide 4-(2-bromo-phenyl)-4-cyano-but-3-enoic acid methyl ester as a pale yellow oil (13.8 g, 96percent). Major isomer 1H NMR (400 MHz, CDCl3) delta7.59 (dd, 1H, J =7.6, 1.2), 7.57-719 (m, 3H), 6.71 (t, 1H, J=7.1), 3.71 (s, 3H), 3.61 (d, 2H, J=7.1); 13C NMR (100 MHz, CDCl3) delta169.7, 144.4, 133.7, 131.4, 131.1, 128.3, 122.5, 118.1, 117.3, 115.3, 52.7, 36.6; IR (ATR, neat) 1737, 1434, 1319, 1199, 1171, 1026, 755 cm-1. Minor isomer 1H NMR (400 MHz, CDCl3) delta7.61 (dd, 1H, J=7.6, 1.0), 7.57-7.19 (m, 3H), 6.9 (t,1H, J=7.5), 3.64 (s, 3H), 3.06 (d, 2H, J=7.5). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; sodium methylate; sodium hydrogencarbonate; In water; | EXAMPLE 2 The toluene solution of 3-mercapto-2-butanone from the previous step (613 g of ca. 25 wt percent solution) was placed in a clean, dry reactor along with 15 g of methyl-3-methoxyacrylate. The mixture was warmed to 25° C., stirred vigorously, and treated with solid sodium methoxide (8.5 g, ca. 0.1 equiv.) all at once. The remaining methyl-3-methoxyacrylate (151 g) was added in at a rate to keep the temperature at or below 35° C. (2 h). The resulting mixture was allowed to reach room temperature and stir for 21 h. Concentrated hydrochloric acid (88 g) was added to the mixture over 30 min such that the temperature did not exceed 35° C. The resulting mixture was stirred vigorously for 2 h, then treated with 73 g of water, and stirred for 10 min more. The phases were allowed to separate. After standing for 10 min, the aqueous phase was drained from the reactor, and the upper, product phase was washed with 100 g of 5percent sodium bicarbonate solution. After being stirred for 15 min, the phases were allowed to separate. The lower, aqueous phase was drained from the reactor, and the upper, product phase was transferred to a distilling flask. The toluene was distilled through a 5-plate distillation column at 100 mmHg. After a small fraction containing toluene and other low boiling impurities was collected, the product, 3-carbomethoxy-4,5-dimethylthiophene, was distilled through the column at 50 mmHg. | |
With hydrogenchloride; sodium methylate; sodium hydrogencarbonate; In water; | Example 2 The toluene solution of 3-mercapto-2-butanone from the previous step (613 g of ca. 25 wtpercent solution) was placed in a clean, dry reactor along with 15 g of methyl-3-methoxyacrylate. The mixture was warmed to 25°C, stirred vigorously, and treated with solid sodium methoxide (8.5 g, ca. 0.1 equiv.) all at once. The remaining methyl-3-methoxyacrylate (151 g) was added in at a rate to keep the temperature at or below 35°C (2 h). The resulting mixture was allowed to reach room temperature and stir for 21 h. Concentrated hydrochloric acid (88 g) was added to the mixture over 30 min such that the temperature did not exceed 35°C. The resulting mixture was stirred vigorously for 2 h, then treated with 73 g of water, and stirred for 10 min more. The phases were allowed to separate. After standing for 10 min, the aqueous phase was drained from the reactor, and the upper, product phase was washed with 100 g of 5percent sodium bicarbonate solution. After being stirred for 15 min, the phases were allowed to separate. The lower, aqueous phase was drained from the reactor, and the upper. product phase was transferred to a distilling flask. The toluene was distilled through a 5-plate distillation column at 13.3 kPa [100 mmHg]. After a small fraction containing toluene and other low boiling impurities was collected, the product, 3-carbomethoxy-4,5-dimethylthiophene, was distilled through the column at 6.665 kPa [150 mmHg]. |
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