Structure of 4677-18-3
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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. : | 4677-18-3 |
Formula : | C7H14O2 |
M.W : | 130.19 |
SMILES Code : | OCCC1CCOCC1 |
MDL No. : | MFCD00129068 |
InChI Key : | XZXZZACRGBBWTQ-UHFFFAOYSA-N |
Pubchem ID : | 17750944 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 |
Num. heavy atoms | 9 |
Num. arom. heavy atoms | 0 |
Fraction Csp3 | 1.0 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 35.9 |
TPSA ? Topological Polar Surface Area: Calculated from |
29.46 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.8 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
0.5 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.8 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.57 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.55 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.04 |
Log S (ESOL):? ESOL: Topological method implemented from |
-0.83 |
Solubility | 19.2 mg/ml ; 0.148 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-0.69 |
Solubility | 26.7 mg/ml ; 0.205 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-0.97 |
Solubility | 13.8 mg/ml ; 0.106 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 |
-6.74 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) |
1.88 |
* 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 sodium hydroxide; In tetrahydrofuran; | 2-(4-Oxanyl)ethanol To a stirring suspension of lithium aluminum hydride (5.10 g, 138 mmol) in THF (200 mL) at 0 C. was added drop-wise a solution of ethyl 2-(4-oxanyl)acetate (22.0 g, 138 mmol) in THF (50 mL). The reaction mixture was then heated at reflux overnight. After cooling the mixture in an ice bath, ether (300 mL) was added, followed by drop-wise addition of 5N NaOH, until the formation of heavy white precipitate is complete. The suspension was filtered and the filtrate dried (K2CO3), filtered and concentrated by rotary evaporation to give a colorless liquid (17.7 g, 100%). |
93% | With lithium aluminium tetrahydride; In tetrahydrofuran; at 0 - 20℃; for 0.5h;Inert atmosphere; | c) To a solution of 425 mg (2.5 mmol) of ethyl 2-(tetrahydro-2H-pyran-4- yl)acetate in 10 mL of dry THF cooled at 05C under argon, a 2.71 mL of a solution of LiAII-U 1 M in THF was added. Bubbling was observed. It was stirred at room temperature for 30 min. Then it was quenched with wet EtAcO, dried with MgS04 and filtered through celite, washing with abundant EtAcO. After removing the solvent the desired compound, 2-(tetrahydro-2H-pyran-4-yl)ethanol, was obtained (300 mg, 93%). |
77% | With lithium aluminium tetrahydride; In tetrahydrofuran; at 11 - 13℃; for 18h; | To a mixture of <strong>[103260-44-2]ethyl 2-(tetrahydro-2H-pyran-4-yl)acetate</strong>(20 g, 116 mmol) in anhydrous THF (300 mE) was addedlithium aluminum hydride (8.8 g, 232 mmol) portionwise at0 C. The mixture was stirred at 11-13 C. for 18 h. TEC(petroleum ether: ethyl acetate=3: 1) showed no startingmaterial remaining. The mixture was quenched with water(9 mE), 10% aq. NaOH solution (9 mE) and water (18 mE)successively at 0 C., filtered and concentrated underreduced pressure to give crude 2-(tetrahydro-2H-pyran-4-yl)ethanol (11.7 g, 77%) as an oil, which was used for thenext step directly without further purification. ?H NMR(CDC13, 400 MHz): oe 3.86-3.90 (m, 2H), 3.58-3.61 (t, J=6.4Hz, 2H), 3.32-3.35 (t, J=11.6 Hz, 2H), 2.69-2.70 (m, 1H),1.61-1.63 (m, 3H), 1.54-1.60 (m, 2H), 1.43-1.45 (m, 2H). |
66.1% | With lithium aluminium tetrahydride; In tetrahydrofuran; ethyl acetate; at 0℃; for 16h; | Lithium aluminum hydride (2M solution in THF, 40.66 ml, 81.3 mmol) was cooled at 0 C and a solution of <strong>[103260-44-2]ethyl 2-(tetrahydro-2H-pyran-4-yl)acetate</strong> (14.0 g, 81.3 mmol) in THF (70 ml) was added dropwise. Ethyl acetate (20 ml) was added to the reaction mixture dropwise at 0 C and the resulting mixture was allowed to stir for 16 h. The reaction mixture was filtered through Celite and the filtrate was concentrated to give crude compound. The crude material was purified by column chromatography using mobile phase 0-65% ethyl acetate in hexane to afford the title compound (66.1%). ?H NMR (400MHz, CDC13) & 5.71 (s, 1H), 4.18-4.15 (m, 2H), 3.81-3.75 (m, 4H), 3.05-3.02 (m, 2H), 2.37-2.34 (m, 2H), 1.32- 1.31 (m, 3H). |
To 15 mL of tetrahydrofuran (THF) at 0 0C was added LiAlH4 (0.28 g, 7.3 mmol). This mixture was stirred for 10 min then the ethyl tetrahydropyran-4-yl-acetate (Combi- Blocks Inc., 0.50 g, 2.9 mmol) was added. The reaction was stirred for 5 min at 0 0C then was allowed to warm to ambient temperature and was stirred for 90 min. The reaction was quenched with excess NaHSO4-IOH2O and was stirred for 60 min. The mixture was filtered through Celite. The filtrate was concentrated to give the title compound which was carried on without further purification. MS (DCI/NH3) m/z 131 (M+H)+. EPO <DP n="41"/> | ||
To a suspension of lithium aluminium hydride (11 g, 0.29 mol) in dry tetrahydrofuran (350 mL) at 0 C. was added a solution of (tetrahydro-pyran-4-yl)-acetic acid ethyl ester (25 g, 0.145 mol) in dry tetrahydrofuran (100 mL) dropwise. The resulting mixture was then refluxed for 16 h. After cooling to 0 C., the reaction mixture was quenched carefully by slow addition of a saturated sodium carbonate solution (50 mL). The mixture was decanted and the precipitate was washed with tetrahydrofuran (2×200 mL). The combined tetrahydrofuran layers were dried over anhydrous sodium sulfate and then concentrated in vacuo to afford 2-(tetrahydro-pyran-4-yl)-ethanol (13 g, 69%) as a yellow oil which was used in the next step without purification. | ||
With lithium aluminium tetrahydride; In tetrahydrofuran; at 0 - 13℃; for 18h; | [00106] To a mixture of <strong>[103260-44-2]ethyl 2-(tetrahydro-2H-pyran-4-yl)acetate</strong> (20 g, 116 mmol) in anhydrous THF (300 mL) was added lithium aluminum hydride (8.8 g, 232 mmol) portionwise at 0 C. The mixture was stirred at 11-13 C for 18 h. TLC (petroleum ether: ethyl acetate = 3: 1) showed no starting material remaining. The mixture was quenched with water (9 mL), 10% aq. NaOH solution (9 mL) and water (18 mL) successively at 0 C, filtered and concentrated under reduced pressure to give crude 2-(tetrahydro-2H-pyran-4- yl)ethanol (11.7 g, 77%) as an oil, which was used for the next step directly without further purification. 1H NMR (CDC13, 400 MHz): delta 3.86-3.90 (m, 2H), 3.58-3.61 (t, J = 6.4 Hz, 2H), 3.32-3.35 (t, J = 11.6 Hz, 2H), 2.69-2.70 (m, 1H), 1.61-1.63 (m, 3H), 1.54-1.60 (m, 2H), 1.43-1.45 (m, 2H). | |
Intermediate 32: 2-(Tetrahydro-2/-/-pyran-4-yl)ethanolTo an ice-cold solution of lithium aluminium hydride (12.6 ml, 2.3M solution in tetrahydrofuran) in dry tetrahydrofuran (20 ml) and under nitrogen, was added a solution of ethyl tetrahydro-2/-/-pyran-4-yl acetate (5g) in dry tetrahydrofuran dropwise over 10 minutes. Following the addition the reaction was heated to reflux, overnight. The reaction was cooled and diluted with diethyl ether (100 ml). A 5M aqueous solution of sodium hydroxide (-10 ml) was added cautiously to the reaction mixture until the effervescence ceased. The formed white precipitate was filtered off. The resulting filtrate was dried over potassium carbonate, filtered and concentrated in vacuo. This yielded the title compound as a colourless oil (3.3g). MS calcd for (C7H14O2)" = 130 MS found (electrospray): (M+H)+ = 1311 H NMR (DMSO): 4.35 (1 H, t), 3.80 (2H, m), 3.43 (2H, m), 3.25 (2H, m), 1.60 (1 H, m), 1.54 (2H, m), 1.35 (2H, m), 1.13 (2H, m). |
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