Structure of 27328-68-3
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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. : | 27328-68-3 |
Formula : | C9H7ClN2O2 |
M.W : | 210.62 |
SMILES Code : | O=C(O)CC1=NNC2=C1C=C(Cl)C=C2 |
MDL No. : | MFCD09835467 |
InChI Key : | OIQMRQZOCUNAIN-UHFFFAOYSA-N |
Pubchem ID : | 12470261 |
GHS Pictogram: |
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Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 14 |
Num. arom. heavy atoms | 9 |
Fraction Csp3 | 0.11 |
Num. rotatable bonds | 2 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 2.0 |
Molar Refractivity | 52.65 |
TPSA ? Topological Polar Surface Area: Calculated from |
65.98 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
0.85 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.68 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.84 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.34 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.32 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.61 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.55 |
Solubility | 0.596 mg/ml ; 0.00283 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.68 |
Solubility | 0.44 mg/ml ; 0.00209 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.31 |
Solubility | 0.103 mg/ml ; 0.000488 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 |
-6.39 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 |
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) |
1.77 |
* 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 |
---|---|---|
Stage 2 (5-Chloro-1H-indazol-3-yl)acetic acid The amino acid obtained in Stage 1 is dissolved with 3 equivalents of sodium hydroxide pellets in 600 ml of water in a three-necked flask equipped with a thermometer, a mechanical stirrer, a dropping funnel and a reflux condenser surmounted by a bubbler. The mixture is brought to 30-40 C. and 5.7 g of active charcoal are added. Hydrazine monohydrate is slowly added (2.1 eq, i.e. 22.7 g). The mixture is stirred for 15 minutes at 30-40 C. and then for 3 hours at 80-85 C. The reaction mixture is cooled. After filtration, the reaction mixture is acidified with 75 ml of 36% hydrochloric acid. The precipitate formed is filtered off on sintered glass and then dried in a desiccator. Melting point: 193 C. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In sodium hydroxide; water; | EXAMPLE 1 1-[(benzothiazol-2-yl)methyl]-1H-indazole-3-acetic acid To a vigorously stirring solution of 1H-indazole-3-acetic acid (0.88 g) in water (100 ml) containing sodium hydroxide (0.60 g) was added 2-(bromomethyl)benzothiazole (1.25 g) and the resulting mixture heated at 80 C. for 2.5 hours. The reaction solution was cooled to room temperature and extracted with ether (2*25 ml). The aqueous layer was collected and acidified to a pH of about 4.0 with concentrated HCl, and then extracted with ethyl acetate (2*20 ml). The organic layers were combined, dried and evaporated to a yellow solid (yield: 0.67 g), which was crystallized from benzene (m.p. 164-165 C.). Substituting a molar equivalent of <strong>[27328-68-3]5-chloro-1H-indazole-3-acetic acid</strong> for 1H-indazole-3-acetic acid, the same method was employed to prepare: 1-(benzothiazol-2-yl)methyl-<strong>[27328-68-3]5-chloro-1H-indazole-3-acetic acid</strong> (m.p. 213 C.). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With hydrogenchloride; sodium sulfite; sodium nitrite; In water; | EXAMPLE 1 Preparation of 5-chloro-1H-indazole-3-acetic acid: To a suspension of 2 -amino-5-chlorocinnamic acid (3.0 g) in water (35 ml), there is added conc. hydrochloric acid (11 ml). To the resulting solution cooled with ice, a solution of sodium nitrite (1.0 g) in water (2 ml) is dropwise added while stirring, and stirring is continued for 30 minutes. Anhydrous sodium sulfite (5.0 g) is portionwise added thereto. After stirring at room temperature for 1 hour, the resulting mixture is admixed with water (100 ml) and heated on an oil bath for 0.5 to 1 hour while refluxing. The reaction mixture is filtered. The collected material is washed with hot water. The washing water is combined with the filtrate and concentrated. The residue is crystallized from hot water to give 5-chloro-1H-indazole-3-acetic acid (0.7 g) as white needles melting at 205 C (decomp.) |
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