Structure of 1673-47-8
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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. : | 1673-47-8 |
Formula : | C7H7ClN2O |
M.W : | 170.60 |
SMILES Code : | NNC(=O)C1=CC(Cl)=CC=C1 |
MDL No. : | MFCD00014757 |
InChI Key : | PHRDZSRVSVNQRN-UHFFFAOYSA-N |
Pubchem ID : | 74289 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 11 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.0 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 2.0 |
Molar Refractivity | 42.35 |
TPSA ? Topological Polar Surface Area: Calculated from |
55.12 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
0.78 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.18 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.94 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.73 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.84 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.09 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.91 |
Solubility | 2.09 mg/ml ; 0.0122 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.93 |
Solubility | 1.99 mg/ml ; 0.0117 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-2.65 |
Solubility | 0.383 mg/ml ; 0.00224 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 |
-6.5 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 |
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) |
1.2 |
* 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 |
---|---|---|
91.67% | With hydrazine hydrate; In methanol; at 70℃; for 1h; | [0283] To a stirred solution of <strong>[2905-65-9]methyl 3-chlorobenzoate</strong> (600.00 mg, 3.53 mmol) in methanol (5.00 mL) was added Hydrazine Monohydrate (1.0 mL). The resulting solution was stirred for 1 h at 70C. The precipitated solids were collected by filtration and washed with ACN (2x2 mL) to give the title compound as a off-white solid (550 mg, 91.67%) MS m/z: 171 [M+H]+. |
With hydrazine hydrate; In methanol; for 5h;Reflux; | General procedure: Compounds 6a-t were synthesized from substituted benzoic acid via six steps according to the literature method as described. Various substituted benzoic acids 1a-t were treated with SOCl2 to give compounds 2a-t, which were reacted with CH3OH and EtN3 in CH2Cl2 at 0 to afford compounds 3a-t. Compounds 4a-t were prepared by the reaction of compounds 3a-t, hydrazine hydrate in CH3OH under reflux condition about 5h. Subsequently, compounds 5a-t were obtained by reaction of compounds 4a-t with CS2 and KOH in CH3OH. Compounds 6a-t were obtained by the cyclization reaction of compounds 5a-t in the presence of HCl at 0-5C. | |
With hydrazine hydrate; In ethanol; for 9h;Reflux; | General procedure: Substituted benzoic acid (1.0 mmol) was dissolved in thionylchloride and refluxed for 2 h, then the solvent was removed underreduced pressure to obtain the white solid. The white solid in methanol was added concentrated sulfuric acid (1 mL) and themixture was refluxed for 4 h, the solvent was removed to obtaincrude solid. The crude solid was extracted with ethyl acetate andwater. The solvents were evaporated to afford the pure product.Finally, the pure product was dissolved in ethanol, and the hydrazinehydrate was added. The mixture was refluxed for 9 h, and thesolvent was removed |
With hydrazine hydrate; In methanol; for 8h;Reflux; | General procedure: To a solution of methyl ester of aromatic carboxylic acid 2 (0.1 mol) in methanol (30 mL), hydrazine hydrate (0.2 mol) was added drop wise with stirring. The resulting mixture was allowed to reflux for 8 h. After the completion of the reaction as monitored by TLC, the excess methanol was distilled off under reduced pressure. The resulting acid hydrazide 3 was washed with cold water, dried and recrystallized from ethanol. | |
With hydrazine hydrate;Reflux; | General procedure: One millimole of the corresponding ester was added insmall portion to a round bottom flask containing solution ofhydrazine hydrate (10 ml) and followed by stirring themixture under reflux conditions. When completion of thereaction was monitored by TLC, the media was poured ontoice bath and the resulting precipitation was isolated by filtration.The corresponding acid hydrazide was afforded andrecrystallized from ethanol and water. | |
With hydrazine hydrate; In methanol; at 65℃; for 4h; | General procedure: To a solution of esters (2a~2t, 1.0 equiv.), furan-2-carbonyl chloride (7a, 1.0 equiv.) orthiophene-2-carbonyl chloride (7b, 1.0 equiv.) in MeOH (2 mL/1 mmol) was added hydrazine hydrate(1 mL/1 mmol), then the mixture was allowed to reach 65 C and stirred for 4 h. After completion(monitored by TLC), the organic solvent was removed and extracted three times with ethyl acetate,the combined organic extracts were dried (Na2SO4) and concentrated under reduced pressure to givethe corresponding hydrazides (3a~3t, 8a, or 8b) in high yields, which were taken up for the next stepwithout any purification. | |
With hydrazine hydrate; In methanol;Reflux; Inert atmosphere; | General procedure: Hydrazine hydrate (5 mL, 40%) was added to a solution of requiredester (5.0 mmol) in methanol (20 mL). The solution was refluxed for12-24 h and monitored by TLC until starting material was completelyconsumed. After that, solvent was evaporated under reduced pressureand a small amount of water (5 mL) was added to precipitate the hydrazide,which was filtered and dried in vacuum to give a shiny white toyellow solid in excellent yields, without further purification. | |
With hydrazine hydrate; In methanol; at 80℃; for 4h; | General procedure: At the 250 cm3double-mouth bottle, 13.5 mmol of themethyl benzoate derivatives was added to 100 cm3of methanol,added 6.75 cm3of hydrazine hydrate (108 mmol) tothe reaction mixture slowly. After that warming to 80 Cand reflux for 4 h until the reaction was completed, thenconcentrated under reducing pressure to remove methanol,filtering and drying to get white solid 2. | |
With hydrazine hydrate; In ethanol;Reflux; | General procedure: Method A Methyl benzoate derivatives (2, 1 eq) and 85% hydrazine hydrate (10 eq) were dissolved in ethanol (45 mL). The mixture was refluxed overnight. After cooling, the solvent was removed in vacuo and the residue was separated on the Biotage SNAP Cartridge KP-Sil 100 g eluting with 0-60 % ethyl acetate/petroleum ether to afford compound 4. |
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