Structure of 1347736-74-6
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CAS No. : | 1347736-74-6 |
Formula : | C6HBr2FN2S |
M.W : | 311.96 |
SMILES Code : | FC1=C(Br)C2=NSN=C2C(Br)=C1 |
MDL No. : | MFCD26939241 |
InChI Key : | KVZDYOVYIHJETJ-UHFFFAOYSA-N |
Pubchem ID : | 67515326 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302 |
Precautionary Statements: | P280-P305+P351+P338 |
Num. heavy atoms | 12 |
Num. arom. heavy atoms | 9 |
Fraction Csp3 | 0.0 |
Num. rotatable bonds | 0 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 52.77 |
TPSA ? Topological Polar Surface Area: Calculated from |
54.02 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.24 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
3.27 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
3.78 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.59 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
4.45 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
3.27 |
Log S (ESOL):? ESOL: Topological method implemented from |
-4.39 |
Solubility | 0.0127 mg/ml ; 0.0000408 mol/l |
Class? Solubility class: Log S scale |
Moderately soluble |
Log S (Ali)? Ali: Topological method implemented from |
-4.08 |
Solubility | 0.026 mg/ml ; 0.0000834 mol/l |
Class? Solubility class: Log S scale |
Moderately soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-4.56 |
Solubility | 0.00851 mg/ml ; 0.0000273 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) |
Yes |
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) |
Yes |
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 |
-5.88 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 |
0.55 |
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<0.0 |
Synthetic accessibility? Synthetic accessibility score: from 1 (very easy) to 10 (very difficult) |
2.16 |
* 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 |
---|---|---|
64% | With tetrakis(triphenylphosphine) palladium(0); In toluene; at 80℃; for 48h;Inert atmosphere; Sealed tube; | In a N2 filled glove box a 20 mL glass tube was charged with <strong>[1347736-74-6]4,7-dibromo-5-fluorobenzo[c][1,2,5]thiadiazole</strong> (FBTBr2, 326 mg, 1.05 mmol), 5?-hexyl-2,2?-bithiophene-5-trimethylstannane (432 mg, 1.05 mmol), Pd(PPh3)4 (50 mg, 0.04 mmol) and Toluene (15 mL), and sealed with a Teflon cap. The reaction mixture was heated to 80 C. for 48 h. Upon cooling, the material was then loaded onto silica and purified by flash chromatography using a hexanes/ chloroform gradient. After fraction collection and solvent removal an orange solid was obtained. Recovered yield: 294 mg (64%). 1H NMR (CDCl3): delta 8.04 (d, J=3.6 Hz, 1H, CH), 7.67 (d, J=10.2 Hz, 1H, CH), 7.19 (d, J=3.6 Hz, 1H, CH), 7.12 (d, J=3.6 Hz, 1H, CH), 6.73 (d, J=3.6 Hz, 1H, CH), 2.82 (1, J=7.8 Hz, 2H, CH2), 1.70 (m, J=7.5 Hz, 2H, CH2), 1.40 (br m, 2H, CH2), 1.34 (br m, 2H, CH2), 1.32 (br m, 2H, CH2), 0.90 (t, J=7.2 Hz, 3H, CH3). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
57% | With hydrogen bromide; bromine; In water; for 48h;Reflux; | Compound 3 (2.23 g, 14.5 mmol) was charged to a round bottom flask with 30% of 48% hydrobromic acid, and bromine (7.47 mL, 145 mmo) was added dropwise and refluxed for 48 hours. The reaction was cooled to room temperature and diluted with chloroform and deionized water. The bi-phasic mixture is transferred to a separatory funnel, washed several times with water, rinsed with saturated sodium sulfite and rinsed with saturated sodium bicarbonate. The organic layer was extracted, dried over magnesium sulfate, filtered, and concentrated to silica. The compound was purified four times by column chromatography |
57% | With hydrogen bromide; bromine; for 48h;Reflux; | A round-bottom flask was charged with 5-fluorobenzo[c][1,2,5]thiadiazole (2.23 g, 14.5 mmol) followed by 48% hydrobromic acid (30 mL). Molecular bromine (7.47 mL, 145 mmol) was added drop wise and the reaction refluxed for 48 h. The reaction was allowed to cool to room temperature and diluted with chloroform and deionized water. The bi-phasic mixture was transferred to a separatory funnel and washed several times with water, rinsed with saturated sodium sulfite and rinsed with saturated sodium bicarbonate. Organics were collected and dried over magnesium sulfate. The solution was filtered and concentrated with silica. The compound was purified by flash column chromatography using a hexanes/ chloroform gradient isolation of pure fractions afforded a white solid. Yield: 2.58 g (57%). 1H NMR (CDCl3): delta 7.79 (d, 1H, J=8.4 Hz). |
44% | With hydrogen bromide; bromine; at 120℃; for 48h; | To a solution of compound 4 (11.0 g, 71.4 mmol) in 120 mL HBr, bromine (17 mL, 356.8 mmol) was added dropwise slowly at room temperature. After the addition, the reaction mixture was stirred for 48 h at 120 C. After cooling down the mixture to room temperature, the residual bromine was quenched with saturated NaHSO3 solution. The precipitated material was recovered by filtration and then recrystallizied from methylene chloride/ethanol to give 9.8 g (44%) of compound 5. 1H NMR (300 MHz, CDCl3): delta (ppm) 7.81 (d, 1H, J = 8.2 Hz); 13C NMR (75 MHz, CDCl3): delta (ppm) 160.1 (d, 1JC-F = 255.4 Hz), 152.7 (d, 3JC-F = 7.0 Hz), 150.3, 123.9 (d, 2JC-F = 32.4 Hz), 114.0 (d, 3JC-F = 11.5 Hz), 98.2 (d, 2JC-F = 24.3 Hz). HRMS (m/z, EI+) calcd for C6HBr2FN2S 309.8211, found 309.8213. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
78% | With sodium tetrahydroborate; In ethanol; at 0 - 20℃; for 20h; | 2.1.1 3,6-Dibromo-4-fluoro-1,2-phenylenediamine (1) 4,7-Dibromo-5-fluoro-2,1,3-benzothiadiazole (5 g, 0.016 mol) was dissolved in ethanol (150 ml), then sodium borohydride (12.1 g, 0.32 mol) was added portion wise at 0 C, and the reactants were stirred for 20 h at room temperature. After evaporation of the solvent, 160 ml water was added, and the mixture was extracted with ethyl acetate. The extract was washed with brine and dried over anhydrous magnesium sulfate. The residue was purified by column chromatography on silica gel using hexane/ethyl acetate (25:1) as eluent to afford 3,6-dibromo-4-fluoro-1,2-phenylenediamine (3.5 g) as a pale solid in 78% yield. 1H NMR (CDCl3, 500 MHz) delta(ppm): 6.81(d,1H,J = 8 Hz), 3.63(s,4H). 13C NMR(500 MHz, CDCl3): delta(ppm), 154.16, 152.25, 135.75, 135.73, 128.73, 128.71, 109.44, 109.35, 108.83, 108.62, 96.78, 96.58. mp: 94 C. Anal. Calcd for (C6H5Br2FN2) (%):C25.38, H 1.78, N 9.87. Found (%):C 24.29, H 1.83, N 10.14. |
78% | With sodium tetrahydroborate; In ethanol; at 0 - 20℃; for 20h; | 5- fluoro-4, 7-dibromo -2, 1,3-benzothiadiazole(5g, 0.016mol) was dissolvedin 150ml of absolute ethanol. At 0 C, NaBH4 (11. 1g, 0.29mol) was addedportionwise and then reacted at roomtemperature for 20h. After the completion of the reaction, ethanol wasremoved to concentrat. 160ml of water was then added, and the system was extractedwith ethyl acetate. The organic phase was washed with saturated brine andfinally dried over anhydrous MgSO4. The obtained crude product wasconcentrated after removal of the organic solvent. Silica gel columnchromatography and an eluting agent of n-hexane / ethyl acetate (25: 1) wasused to obtain 4-fluoro-3,6-dibromo-1,2-benzenediamine 3.58 g (Compound1), witha yield of 78% |
78% | With sodium tetrahydroborate; In ethanol; at 0 - 20℃; for 20h; | To 150 ml of ethanol was added 4,7-dibromo-5-fluoro-2,1,3-benzothiadiazole (4,7-dibromo-5-fluoro-2,1,3- Benzothiadiazole (5 g, 0.016 mol) was dissolved, and sodium borohydride (12.1 g, 0.32 mol) was added at 0 C And stirred at room temperature for 20 hours. After evaporating the solution, 160 ml of water were added and the mixture was extracted with ethyl acetate. The extract was washed with brine, dried over magnesium sulfate and the residue was purified by silica column chromatography (hexane / ethyl acetate (25: 1)) to give 3,6-dibromo-4-fluoro |
66% | With sodium tetrahydroborate; ethanol; at 0 - 20℃; | the 4,6-dibromo-5-fluorobenzo [c] [1, 2, 5] thiadiazole (2.00g, 6 . 41 mmol) and ethanol (50 ml) is added to the three-hole and round-bottom flask cooled to 0 C. In slowly adding Na[BH4] (4.6g, 0 . 12 mol) later, the reaction mixture is stirred at room temperature overnight. After removing the volatile substance, the 100 distilled water added to the reaction mixture, then the mixture is extracted with ethyl ether, salt water cleaning, and the anhydrous Na2SO4dry. Removing volatile substances from the extract to obtain a light brown powder A (1.20g, 66%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
26% | The 30 mL microwave tube was charged with 4,4-bis(2-ethylhexyl)-2,6-bis(trimethylstannyl)-4H-silolo[3,2-b:4,5-b']dithiophene(Me3Sn-DTSi-SnMe3, 1.40 g, 1.88 mmol), <strong>[1347736-74-6]4,7-dibromo-5-fluorobenzo[c][1,2,5]-thiadiazole</strong> (FBTBr2, 1.47 g, 4.70 mmol), Pd(PPh3)4(0.108 g, 0.094 mmol) and toluene (10 mL). Then, microwave-assistedStille coupling were carried out using a Biotage microwave reactor.After cooling, the material was loaded onto silica and purified by flashchromatography using hexanes/chloroform gradient. Solvent was removedafter collection. The solid in 3:1 mixture of methanol and hexaneswas sonicated for 1 h and stirred during the overnight. The suspensionwas filtered and recrystallized with dichloromethane andhexane. Finally, red solid was obtained (0.42 g, yield: 26%). 1H NMR(400 MHz, CDCl3): delta 8.17 (t, J=8.0 Hz, 2H), 7.68 (d, J=4.0 Hz, 2H),1.51 (m, 2H), 1.43-1.16 (m, 16H), 1.09 (m, 4H), 0.82 (m, 12H). 13CNMR (100 MHz, CDCl3): delta 151.3, 148.8, 145.6, 132.1, 132.1, 132.0,127.7, 127.6, 115.4, 115.0, 36.0, 35.7, 30.9, 28.9, 23.0, 17.6, 14.1,10.8. Elemental analysis calc. For C36H38Br2F2N4S4Si: C 49.09 H 4.35 N6.36 S 14.56; Found: C 49.34 H 4.50 N 6.55 S 14.82. MALDI-TOF:Calcld. For 880.86; Found: 880.00. |
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