Structure of 346-55-4
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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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Discovery of Inhibitory Fragments That Selectively Target Spire2-FMN2 Interaction
Kitel, Radoslaw ; Surmiak, Ewa ; Borggrafe, Jan ; Kalinowska-Tluscik, Justyna ; Golik, Przemyslaw ; Czub, Miroslawa , et al.
Abstract: Here, we report the fragment-based drug discovery of potent and selective fragments that disrupt the Spire2-FMN2 but not the Spire1-FMN2 interaction. Hit fragments were identified in a differential scanning fluorimetry-based screen of an inhouse library of 755 compounds and subsequently validated in multiple orthogonal biophys. assays, including fluorescence polarization, microscale thermophoresis, and 1H-15N HSQC NMR. Extensive structure-activity relationships combined with mol. docking followed by chem. optimization led to the discovery of compound 13, which exhibits micromolar potency and high ligand efficiency (LE = 0.38). Therefore, this fragment represents a validated starting point for the future development of selective chem. probes targeting the Spire2-FMN2 interaction.
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CAS No. : | 346-55-4 |
Formula : | C10H5ClF3N |
M.W : | 231.60 |
SMILES Code : | FC(C1=CC=C2C(Cl)=CC=NC2=C1)(F)F |
MDL No. : | MFCD00006775 |
InChI Key : | LLRQVSZVVAKRJA-UHFFFAOYSA-N |
Pubchem ID : | 67668 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 15 |
Num. arom. heavy atoms | 10 |
Fraction Csp3 | 0.1 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 4.0 |
Num. H-bond donors | 0.0 |
Molar Refractivity | 51.76 |
TPSA ? Topological Polar Surface Area: Calculated from |
12.89 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
2.28 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
3.03 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
5.06 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
3.39 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
4.04 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
3.56 |
Log S (ESOL):? ESOL: Topological method implemented from |
-3.61 |
Solubility | 0.0566 mg/ml ; 0.000244 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.97 |
Solubility | 0.25 mg/ml ; 0.00108 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-5.21 |
Solubility | 0.00143 mg/ml ; 0.00000617 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) |
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 |
-5.56 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) |
1.48 |
* 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 |
---|---|---|
With hydrogenchloride; In ethanol; | EXAMPLE 6 p-[(7-trifluoromethyl-4-quinolyl)amino]-N-methylbenzamide hydrochloride A mixture of 0.1 mole of <strong>[6274-22-2]N-methyl-p-aminobenzamide</strong>, 0.1 mole of 4-chloro-7-trifluoromethylquinoline, 10 ml. of concentrated hydrochloric acid and 500 ml. of absolute ethanol is stirred at about 25 C. for 30 minutes. A precipitate begins to form, and the mixture is then heated at reflux for 4 hours. The mixture is cooled and filtered to obtain p-[(7-trifluoromethyl-4-quinolyl)amino]-N-methylbenzamide hydrochloride. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In acetonitrile; for 18h;Heating / reflux; | A mixture of 7.2 g of 4-chloro-7-trifluoromethylquinoline, 5.4 g of methyl 2- aminophenylacetate and 250 mL of acetonitrile is heated under reflux for 18 hours. The solvent is evaporated under reduced pressure and the residue extracted 3 times with 200 mL portions of hot water. The aqueous extract is rendered basic with 10% ammonium hydroxide whereupon the desired compound precipitated; it was recrystallized from aqueous ethanol yielding colorless needles with a melting point of 140-1410C. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
76% | In N,N-dimethyl-formamide; for 12.0h;Reflux; | General procedure: A mixture of 1 (2.31 g, 0.01 mol) and the corresponding sulfadrugs (0.012 mol) in dry DMF (20 mL) was refluxed for 12 h. The solid obtained after concentration was filtered and crystallized from dioxane to give 2-14, respectively. |
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