Structure of 3-benzyloxycinnamic acid
CAS No.: 122024-75-3
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CAS No. : | 122024-75-3 |
Formula : | C16H14O3 |
M.W : | 254.28 |
SMILES Code : | O=C(O)/C=C/C1=CC=CC(OCC2=CC=CC=C2)=C1 |
MDL No. : | MFCD02331624 |
InChI Key : | OFMOWGZEBJKDCT-MDZDMXLPSA-N |
Pubchem ID : | 717814 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 19 |
Num. arom. heavy atoms | 12 |
Fraction Csp3 | 0.06 |
Num. rotatable bonds | 5 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 74.09 |
TPSA ? Topological Polar Surface Area: Calculated from |
46.53 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.34 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
3.86 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
3.1 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.96 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
3.35 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
3.12 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.99 |
Solubility | 0.0263 mg/ml ; 0.000103 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-4.53 |
Solubility | 0.00744 mg/ml ; 0.0000293 mol/l |
Class? Solubility class: Log S scale |
Moderately soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.53 |
Solubility | 0.00756 mg/ml ; 0.0000297 mol/l |
Class? Solubility class: Log S scale |
Moderately 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) |
Yes |
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 |
-5.11 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 |
0.0 |
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 |
1.0 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) |
2.35 |
* 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 |
---|---|---|
92% | (£)-3-(3-(Benzyloxy)phenyl)prop-2-enoic acid (4).3; To a stirred suspension of 3- hydroxycinnamic acid (5.00 g, 30.5 mmol) in EtOH (100 mL) was added 1 M aq. NaOH (65 mL) and the reaction mixture was stirred for 5 min, then treated with benzyl bromide (3.72 mL, 31.1 mmol) and stirred for 14 h at room temperature under N2. The mixture was concentrated under reduced pressure to yield a white solid, which was suspended in water (400 mL) and acidified with cone. aq. HC1. The mixture was filtered and the resulting solid was washed with water and Et20, then dried under high vacuum to give 4 (7.10 g, 92%>) as a white solid: IR (ATR, neat) 3400-2500 (br), 1691, 1629, 1577, 1260 cm"1; 1H NMR (DMSO- d6, 600 MHz) delta 7.49 (d, 1 H, J= 16.0 Hz), 7.46 (app d, 2 H, J= 7.4 Hz), 7.39 (t, 2 H, J= 7.6 Hz), 7.35-7.29 (m, 3 H), 7.22 (d, 1 H, J= 7.6 Hz), 7.03 (dd, 1 H, J= 8.2, 2.3 Hz), 6.56 (d, 1 H, J= 16.0 Hz), 5.14 (s, 2 H); 13C NMR (DMSO-d6, 150 MHz) delta 168.1, 158.7, 142.7, 137.0, 136.1, 130.0, 128.5, 128.0, 127.9, 121.2, 120.9, 116.8, 113.7, 69.3; HRMS (EI) m/z calcd for Ci6Hi403 254.0943, found 254.0950. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
61% | With pyridine; thionyl chloride;N,N-dimethyl-formamide; In chlorobenzene; at 120℃; for 22h;Inert atmosphere; | Methyl 5-(benzyloxy)-3-chlorobenzo[6]thiophene-2-carboxylate (5).; To a mixture of 4 (8.80 g, 34.6 mmol) in chlorobenzene (50 mL), anhydrous pyridine (0.26 mL, 3.29 mmol) and anhydrous DMF (2.60 mL) was added dropwise SOCl2 (12.6 mL, 173 mmol) at room temperature. The reaction mixture was heated at 120 C for 22 h under N2. The solution was concentrated by rotary evaporation and traces of pyridine were removed by azeotropic distillation with toluene. The resulting brown oil was dried under high vacuum overnight to yield a brown solid, which was suspended in Et20, filtered and dried under high vacuum to yield 3-chloro-5-(benzyloxy)-benzo[£]thiophene-2-carbonyl chloride (5.87 g). Upon cooling the filtrate, a second crop of product (1.25 g) was collected by filtration (7.12 g, 61% combined yield). Representative experimental data are as follows: Mp 138-143 C (lit Mp 139-142 C);3 IR (ATR, neat) 1745, 1602, 1483, 1284, 1158 cm"1; 1H NMR (DMSO- d6, 600 MHz) delta 8.01 (d, 1 H, J= 8.8 Hz), 7.50 (d, 2 H, J= 7.3 Hz), 7.44 (d, 1 H, J= 2.3 Hz), 7.41 (t, 2 H, J= 7.3 Hz), 7.37-7.33 (m, 2 H), 5.25 (s, 2 H); MS (EI) m/z 338 (90), 336 (M+, 100), 303 (40), 301 ([M-C1]+, 88). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
96% | With piperidine; pyridine; at 120℃; for 3h; | General procedure: To themixture of the corresponding aldehyde (2.52 g, 12.7 mmol) andmalonic acid (1.99 g, 19.1 mmol), dry pyridine (6.5 ml) and piperidine(0.2 ml) were successively added. The mixture was stirred at120 C for 3 h, cooled to 10 C and acidified with HCl (~14 ml) at 1:1ratio with cooling and stirring. After 30 min, the precipitate wasfiltered, washed 3 times with H2O (20 ml) and air dried. The yieldsof o-, m- and p-PhO-CA were 92, 91 and 96%, respectively. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With oxalyl dichloride; In dichloromethane; at 0 - 20℃; for 4h;Inert atmosphere; Large scale reaction; | To a stirred solution of 4 (2 kg, 8 mol) in CH2Cl2 (2 L) was added oxalyl chloride (1.4 L, 16 mol) dropwise at 0 C. The resulting solution was stirred at room temperature for another 4 h and concentrated in vacuo. To a stirred solution of (R)-4-phenyloxazolidin-2-one (1.3 kg, 8 mol) and TEA (1.7 L, 12 mol) in CH2Cl2 (4.8 L) at 0 C was added the substituted cinnamic chloride in CH2Cl2 (800 mL) dropwise. The mixture was stirred at 0 C for 1 h and then raised to room temperature for 3 h when a saturated solution of NH4Cl (600 mL) was added. The aqueous layer was separated, and the organic solution was washed with water (600 mL × 3), brine (800 mL), and dried over Na2SO4. The organic solution was evaporated and 2.9 kg of 5 was obtained after recrystallization in EtOH in 93% yield | |
With thionyl chloride; for 1h;Reflux; | (R,E)-3- (3- (3-benzyloxy) phenyl) acryloyl)-4- phenyl oxazolidin-2-one <strong>[122024-75-3]m-benzyloxy cinnamic acid</strong> (9.0g, 35.4mmol) was dissolved in thionyl chloride (25ml) and refluxed for 1 hour, and the mixture was concentrated to remove thionyl chloride for further use. 4R-phenyl-2-oxazolidinone (5.6g, 34.4mmol) was placed in a three-necked flask, after it was purged with nitrogen, tetrahydrofuran (25ml) was added and when it was cooled to -78C, n-butyl lithium (1.6M, 22ml, 35.4mmol) was added dropwise, and the reaction was carried out for 30 minutes. Then the solution (35ml) of m-benzyloxy cinnamoyl chloride in tetrahydrofuran as prepared above was added dropwise and the reaction was continued for 30 minutes. After that, it was slowly raised to 0C, the reaction was continued for 2 hours, then it was quenched with saturated ammonium chloride solution. The resulted mixture was then concentrated to remove tetrahydrofuran and extracted with ethyl acetate for three times, then the organic phases were combined, washed with saturated brine, dried over anhydrous sodium sulfate, concentrated and recrystallized with petroleum ether and ethyl acetate to give a white solid 14g, yield: 93%. 1HNMR(300MHz, CDCl3): delta 7.9(1H, d, J=15.5), 7.7(1H, d, J=15.3), 7.3-7.5(11H, m), 7.2 (2H, m), 7.0(1H, dd, J=2.3, 8.6), 5.6(1H, dd, J=4.0,9.0), 5.1(2H, s), 4.8 (1H, t, J=8.9, 17.7), 4.3(1H, dd, J=3.9, 8.8). ESI-MS: 422.2 (M+Na). | |
With thionyl chloride; for 1h;Reflux; | Example 1 (R,E)-3-(3-(3-benzyloxy)phenyl)acryloyl)-4-phenyl oxazolidin-2-one <strong>[122024-75-3]m-benzyloxy cinnamic acid</strong> (9.0 g, 35.4 mmol) was dissolved in thionyl chloride (25 ml) and refluxed for 1 hour, and the mixture was concentrated to remove thionyl chloride for further use. 4R-phenyl-2-oxazolidinone (5.6 g, 34.4 mmol) was placed in a three-necked flask, after it was purged with nitrogen, tetrahydrofuran (25 ml) was added and when it was cooled to -78 C., n-butyl lithium (1.6M, 22 ml, 35.4 mmol) was added dropwise, and the reaction was carried out for 30 minutes. Then the solution (35 ml) of m-benzyloxy cinnamoyl chloride in tetrahydrofuran as prepared above was added dropwise and the reaction was continued for 30 minutes. After that, it was slowly raised to 0 C., the reaction was continued for 2 hours, then it was quenched with saturated ammonium chloride solution. The resulted mixture was then concentrated to remove tetrahydrofuran and extracted with ethyl acetate for three times, then the organic phases were combined, washed with saturated brine, dried over anhydrous sodium sulfate, concentrated and recrystallized with petroleum ether and ethyl acetate to give a white solid 14 g, yield: 93%. 1HNMR (300 MHz, CDCl3): delta 7.9 (1H, d, J=15.5), 7.7 (1H, d, J=15.3), 7.3-7.5 (11H, m), 7.2 (2H, m), 7.0 (1H, dd, J=2.3, 8.6), 5.6 (1H, dd, J=4.0, 9.0), 5.1 (2H, s), 4.8 (1H, t, J=8.9, 17.7), 4.3 (1H, dd, J=3.9, 8.8). ESI-MS: 422.2 (M+Na). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
73% | <strong>[122024-75-3](E)-3-(3-(benzyloxy)phenyl)acrylic acid</strong> (151 g, 594 mmol) was charged to a 2 L jacketed reactor. The reactor was flushed with nitrogen and anhydrous 2-methyltetrahydrofuran (MeTHF, 1.2 L) was charged to the reactor. Agitation was started, and triethylamine (90.0 mL, 646 mmol) was charged to the reactor at a rate to maintain the batch temperature between 10 C. and 20 C. Ethyl chloroformate (60.0 mL, 627 mmol) was charged to the reactor at a rate to maintain the batch temperature between 10 C. and 20 C. The reaction was agitated at 10 C. and 20 C. for 1 hour. Lithium borohydride solution (2.0 M in THF, 290 g, 647 mmol) was charged to the reactor at a rate to maintain the batch temperature between 10 C. and 20 C. The reaction was agitated at 10 C. and 20 C. for 2 hours. 140 mL of water was slowly charged to the reactor at a rate to maintain the batch temperature between 10 C. and 20 C. Aqueous sodium hydroxide (2 M, 480 mL, was slowly charged to the reactor over 30 minutes with a batch temperature between 10 C. and 20 C. 480 mL of water was charged to the reactor. The layers were separated, and the organic portion was washed with 300 mL of water. The organic portion was concentrated in vacuo to 400 mL. 500 mL of ethanol was charged to the reactor and the solution was concentrated in vacuo to 400 mL. This chase was repeated. 150 mL of ethanol was charged to the batch, and the batch temperature was adjusted to 0 C. The solution was seeded to induce crystallization, and the resulting mixture was diluted slowly with 400 mL of water at -5 C. to 0 C. The resulting mixture was agitated for 1 hour at 0 C. The solids were collected by filtration and washed with water. The solids were dried in a vacuum oven with a nitrogen stream at 20 C. to afford the desired (E)-3-(3-(benzyloxy)phenyl)prop-2-en-1-ol as a white solid and the semi-ethanol solvate (114 g, 91 wt %, 4.3 wt % ethanol, 73% yield). 1H NMR (400 MHz, CDCl3) delta 7.46-7.28 (m, 5H), 7.22 (dd, J=8.0, 8.0 Hz, 1H), 7.02-6.96 (m, 2H), 6.86 (d, J=8.0 Hz, 1H), 6.56 (d, J=15.8 Hz, 1H), 6.33 (ddd, J=15.8, 5.6, 5.6 Hz, 1H), 5.05 (s, 2H), 4.29 (d, J=5.6 Hz, 2H). |
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