Structure of 76606-39-8
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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. : | 76606-39-8 |
Formula : | C10H10FN3 |
M.W : | 191.20 |
SMILES Code : | NC1=CC(C)=NN1C2=CC=C(F)C=C2 |
MDL No. : | MFCD02720648 |
InChI Key : | TZLARBJWGJNNIP-UHFFFAOYSA-N |
Pubchem ID : | 2380354 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 14 |
Num. arom. heavy atoms | 11 |
Fraction Csp3 | 0.1 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 52.89 |
TPSA ? Topological Polar Surface Area: Calculated from |
43.84 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.97 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
2.04 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.33 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
2.24 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
1.64 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
2.04 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.83 |
Solubility | 0.285 mg/ml ; 0.00149 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-2.59 |
Solubility | 0.493 mg/ml ; 0.00258 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.24 |
Solubility | 0.111 mg/ml ; 0.000579 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 |
-6.02 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) |
1.77 |
* 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 |
---|---|---|
72% | With hydrogenchloride; at 20 - 100℃; for 18h; | General procedure: To a solution of (2-methoxy-phenyl)-hydrazine HCI salt (10.0 g, 57.3 mmol) in concentrated aqueous HCI (50 mL) was added 3-amino-but-2-enenitrile (5.0 g, 60.9 mmol) at room tem- perature. The reaction temperature was increased to 100 C and the mixture was stirred at this temperature for 18 h. The reaction mixture was cooled to room temperature and then poured into ice-cold 2N NaOH solution (200 mL). The resulting mixture was filtered. The re- manens was washed with water (200 mL) and dried in vacuo to give the title compound as an off-white solid (10.0 g, 86 %). 1 H NMR (DMSO-d6, 400 MHz) δ 7.39-7.35 (1 H, m), 7.24-7.22 (1 H, m), 7.17-7.15 (1 H, m), 7.03-6.99 (1 H, m), 5.21 (1 H, s), 4.76 (2H, s), 3.78 (3H, s), 2.02 (3H, s). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | General procedure: In a 2-5mL microwave vial containing a stir bar, 3-aminocrotonitrile (164 mg, 2mmol) and 5 mL of 1M HCl were combined with stirring to give a 0.4 M solution of starting material. Next, phenylhydrazine (216 mg, 2 mmol) was added to the solution. The microwave vial was then sealed with an aluminum cap and irradiated in the microwave reactor at 150 C for 10 m with the absorbance set to “very high.” After cooling, the orange sludge-containing heterogeneous solution was basified with 10% NaOH and was sonicated for 5 m to produce a visible solid precipitate. The precipitate was filtered, washed twice with D.I. water, and then dried to yield the product as a light orange solid (292 mg, 84% yield). For compounds that do not readily precipitate, the product can be isolated by extracting the basic aqueous layer 3x with dichloromethane (DCM). The combined organic layers are dried over magnesium sulfate, filtered and evaporated under reduced pressure to obtain the product. | |
With hydrogenchloride; In water; | 5-Amino-1-(4-fluorophenyl)-3-methyl-pyrazole 4-Fluorophenylhydrazine HCl (60.0 g.) 175 ml. water, 70 ml. concentrated hydrochloric acid and 28.8 g. 3-amino-2-butene nitrile were refluxed one hour. The solution was cooled and made basic with concentrated ammonia. The solid was filtered and crystallized from ether to get 51.05 g. product, mp 108-110, which was converted to the HCl salt mp 227-229 Analyzed for C10 H10 FN3.HCl: Theoretical; C=52.76, H=4.87, N=18.47 Found; C=52.96, H=4.87, N=18.36 | |
With hydrogenchloride; In water; | 5-Amino-1-(4-fluorophenyl)-3-methyl-pyrazole 4-Fluorophenylhydrazine HCl (60.0 g.) 175 ml. water, 70 ml. concentrated hydrochloric acid and 28.8 g. 3-amino-2-butene nitrile were refluxed one hour. The solution was cooled and made basic with concentrated ammonia. The solid was filtered and crystallized from ether to get 51.05 g. product, mp 108-110, which was converted to the HCl salt mp 227-229 Analyzed for C10 H10 FN3 ·HCl: Theoretical; C=52.76, H=4.87, N=18.47. Found; C=52.96, H=4.87, N=18.36. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
82% | With L-proline; In ethanol; at 78℃; for 6h;Green chemistry; | General procedure: A mixtureof methyl-1-(methylthio)-2-nitroprop-1-en-1-amine 1 (1 mmol), aromatic aldehyde 2(1 mmol) and 3-methyl-1-aryl-1H-pyrazol-5-amine 3 (1 mmol) in thepresence of L-proline (30 mol%) in ethanol (15ml) was stirred at 78 oC for the time given in Table 2. After completion of the reaction (TLC), the reactionmixture was poured into waterand extracted with dichloromethane. After removal of the solvent, the residuewas chromatographed over silica gel (230-400 mesh) using petroleum ether-ethylacetate mixture (9:1 v/v), which afforded the pure compounds 4. The analytical and spectroscopic data for the products 4 are given below. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
79% | With L-proline; In ethanol; at 78℃; for 8h;Green chemistry; | General procedure: A mixtureof methyl-1-(methylthio)-2-nitroprop-1-en-1-amine 1 (1 mmol), aromatic aldehyde 2(1 mmol) and 3-methyl-1-aryl-1H-pyrazol-5-amine 3 (1 mmol) in thepresence of L-proline (30 mol%) in ethanol (15ml) was stirred at 78 oC for the time given in Table 2. After completion of the reaction (TLC), the reactionmixture was poured into waterand extracted with dichloromethane. After removal of the solvent, the residuewas chromatographed over silica gel (230-400 mesh) using petroleum ether-ethylacetate mixture (9:1 v/v), which afforded the pure compounds 4. The analytical and spectroscopic data for the products 4 are given below. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
75% | With hydrogenchloride; In water; for 0.416667h;Heating; | General procedure: To a solution of the corresponding arylhydrazine (1a-e) (10 mmol) in concentrated hydrochloric acid (5 mL), 820 mg of 3-aminocrotonitrile (2) (10 mmol) was added with magnetic stirring. The mixture was left to react for 10 minutes and then more HCl was added (5 mL) while heating for 15 additional minutes. After completion of the reaction, a yellow solution was obtained which was then cooled by addition of crushed ice and neutralized with concentrated ammonium hydroxide. Finally, the formed precipitate corresponding to aminopyrazoles 3a-e, was vacuum filtered and washed with cold water. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
100% | With acetic acid; In ethanol;Reflux; | General procedure: A solution of (4-fluorophenyl)hydrazine (HCl salt, 802 mg, 5.8 mmol) and 3-oxo-butyronitrile (500 mg, 5.8 mmol) in EtOHIAcOH (10 mL/0.2 mL) was stirred at refluxing overnight. The reaction solution was concentrated in vacuum to give crode 2-(4-fluorophenyl)-5-methyl-2H-pyrazol-3-ylamine (1.1 g, yield:quantitative) as a yellow solid which was used for the next step without any purification. ‘H NMR (400 MHz,DMSO-d6): = 7.6-7.64 (m, 2H), 7.45 (t, J= 8.8 Hz, 1H), 5.66 (s, 1H), 2.24 (s, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With Selectfluor; In tetrahydrofuran; at 20℃; for 15h; | To a soin, of i-(’-fiuoro20 phenyl)-3-methyi-iI-{-pyrazol-5-amine (10.0 g, 52.3 mniol) in TFIF (50 mE) was addedSelecifluor (18.53 g, 52.3 mmoi) .Afterthe addition was complete, the mixture was stirred at rt for 15 Ii. The reaction was concentrated in vacuo, and the mixture was extracted with EtOAc (2 x 50 mE). The organic layer was washed with brine, then dried over Na2SO4, filtered and concentrated in vacuo to give the crude product. The crude product was purified by silica gelcolumn chromalography (PE/EtOAc 30:1 to 10:1) to give the title compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With triethylamine; In ethanol; at 70℃; for 15h; | To a soin. of (4-fluorophenyl)- hydrazine hydrochloride (30.0 g, 185 mmol) in EtOH (100 mE) was added Et3N (56.0 g, 554 mmol) and 2-(ethoxymethyiene)rnaiononitrile (23.66 g, 194 mmoi). After the addition was complete, the reaction mixture was stirred 70C for 15 h. The reaction mixture was cooled to rtand concentrated in vacuo. Then the mixture was extracted with EtOAc (2xiOOmL). The combined organic layer was washed with brine, arid then dried over Na2SO4. filtered and concentrated in vacuo to give crude product. The crude product was purified by silica gel column chromatography (PE/EtOAc 10:1 to 5:1) to give the title compound. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
In ethanol; at 85℃; for 18h; | Weighing 0.22 µM of sodium cyanide (2.2 equiv) in 250 ml three-neck bottle in, under ice bath by adding 110 ml THF, then adding 0.1 µM 1 a (1 equiv) and 0.1 µM 1 d (1 equiv), 65 C reflow 12 h. After the reaction, under the ice, with a certain amount of reaction water quenching, adjusting solution PH value to 4 - 5, ethyl acetate extraction, the organic phase is dried with anhydrous sodium sulfate, and steaming and get products 2 ad. 250 Ml three-neck bottle is added to the product of the 1st step 2 ad, 100 ml ethanol and 0.9 µM 2 e, 85 C reflow 18 h. Stopping the reaction, steaming and out ethanol, saturated sodium hydroxide solution to adjust the residue for the PH in 9 - 10. DCM extraction, the organic phase is dried with anhydrous sodium sulfate, and steaming and, column chromatography purification (dichloromethane: ethyl acetate=20:1) to obtain the product B1. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
66% | In benzene;Reflux; Dean-Stark; | General procedure: 3.0 mmol of the corresponding aminopyrazoles (3a-d) were mixed with 6.0 mmol ofcyclohexanone and 9.0 mmol of mercaptoacetic acid in 20 mL of dry benzene. Theresulting mixture was heated to reflux with Dean-Stark trap for 12 h until reaction wascompleted. The crude was cooled to room temperature and then was left at 4 C overnight.The resulting solid was filtered and washed with cold benzene and water yieldingthe spirothiazepin-7-ones 4a-d. |
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