Structure of Dimethyl isophthalate
CAS No.: 1459-93-4
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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. : | 1459-93-4 |
Formula : | C10H10O4 |
M.W : | 194.18 |
SMILES Code : | O=C(OC)C1=CC=CC(C(OC)=O)=C1 |
MDL No. : | MFCD00008433 |
InChI Key : | VNGOYPQMJFJDLV-UHFFFAOYSA-N |
Pubchem ID : | 15088 |
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 | 14 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.2 |
Num. rotatable bonds | 4 |
Num. H-bond acceptors | 4.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 49.0 |
TPSA ? Topological Polar Surface Area: Calculated from |
52.6 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.33 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.16 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.26 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.82 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.61 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.84 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.46 |
Solubility | 0.677 mg/ml ; 0.00348 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.9 |
Solubility | 0.246 mg/ml ; 0.00127 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.55 |
Solubility | 0.542 mg/ml ; 0.00279 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) |
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 |
-5.95 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 |
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) |
1.51 |
* 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 |
---|---|---|
0.9%; 4.9%; 7.2%; 0.2%; 19.6%; 7.0%; 50.4% | With sulfuric acid; sulfur trioxide; bromine; at 120℃; for 7h; | Into a 100 ml pressure and sealable glass tube, 9.70 g (50 mmol) of dimethyl isophthalate, 30.00 g of 10 wt percent fuming sulfuric acid and 10.40 g (100 mmol) of bromine were charged, and the content was stirred at 120° C. for 7 hours. After the conclusion of the reaction, the content was cooled to room temperature, and placed in a beaker containing ice water to give a solid. The resulting solid was filtered off, washed with cooling, and further dried under reduced pressure to give 11.95 g of a crude crystal of the aimed product (reaction yield: 50.4percent 5-bromoisophthalic acid, 19.6percent isophthalic acid, 4.9percent 2,5-dibromoisophthalic acid, 7.2percent 4,5-dibromoisophthalic acid, 7.0percent dimethyl 5-bromoisophthalate, 1.5percent dimethyl isophthalate, 0.9percent dimethyl 2,5-dibromoisophthalate and 0.2percent dimethyl 4,5-dibromoisophthalate). Then, dimethyl esters were derived from the crystal by heating and stirring it with 65.50 g (2.04 mol) of methanol and 1.75 g (30 mol percent) of sulfuric acid in an autoclave at 120° C. [0038] In succession, the esters were subjected to rectification to give 6.73 g (yield: 49.3percent, vacuum boiling point: 159° C./4.8mmHg) of aimed dimethyl 5-bromoisophthalate and 1.67 g (yield: 17.2percent, vacuum boiling point: 133° C./4.8mmHg) of dimethyl isophthalate corresponding to a raw material. The resulting crystals were identified as dimethyl 5-bromoisophthalate and 5-bromoisophthalic acid by MASS, 1H-NMR and melting point. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
50.4% | With bromine; In (2S)-N-methyl-1-phenylpropan-2-amine hydrate; | Example 18 Into a 100 ml pressure and sealable glass tube, 9.70 g (50 mmol) of dimethyl isophthalate, 30.00 g of 10 wtpercent fuming sulfuric acid and 10.40 g (100 mmol) of bromine were charged, and the content was stirred at 120°C for 7 hours. After the conclusion of the reaction, the content was cooled to room temperature, and placed in a beaker containing ice water to give a solid. The resulting solid was filtered off, washed with cooling, and further dried under reduced pressure to give 11.95 g of a crude crystal of the aimed product (reaction yield: 50.4percent 5-bromoisophthalic acid, 19.6percent isophthalic acid, 4.9percent 2,5-dibromoisophthalic acid, 7.2percent 4,5-dibromoisophthalic acid, 7.0percent dimethyl 5-bromoisophthalate, 1.5percent dimethyl isophthalate, 0.9percent dimethyl 2,5-dibromoisophthalate and 0.2percent dimethyl 4,5-dibromoisophthalate). |
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