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CAS No. : | 341-23-1 |
Formula : | C7H5FN2 |
M.W : | 136.13 |
SMILES Code : | FC1=C2C(=CC=C1)[NH]N=C2 |
MDL No. : | MFCD07371561 |
InChI Key : | YTNDJUBXSVSRQK-UHFFFAOYSA-N |
Pubchem ID : | 22477757 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 10 |
Num. arom. heavy atoms | 9 |
Fraction Csp3 | 0.0 |
Num. rotatable bonds | 0 |
Num. H-bond acceptors | 2.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 36.05 |
TPSA ? Topological Polar Surface Area: Calculated from |
28.68 ?2 |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.04 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
1.65 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
2.12 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
1.56 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
2.5 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
1.77 |
Log S (ESOL):? ESOL: Topological method implemented from |
-2.39 |
Solubility | 0.555 mg/ml ; 0.00408 mol/l |
Class? Solubility class: Log S scale |
Soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.87 |
Solubility | 1.85 mg/ml ; 0.0136 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-3.16 |
Solubility | 0.0944 mg/ml ; 0.000693 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 |
-5.96 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) |
1.58 |
* 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 |
---|---|---|
86.5% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 20℃; for 2h; | Example IB Preparation of 4-(l-(2-chloro-6-(trifluoromethyl)benzoyl)-4-fluoro-lH-indazol-3- yl)cyclohex-3-enecarboxylic acid (IB) Step 1: Preparation of 4-fluoro-3-iodo-1H-indazole (B-2). A solution of <strong>[341-23-1]4-fluoroindazole</strong> (B-l) (5.00 g, 36.73 mmol) in DMF (80 mL) was added I2 (18.64 g, 73.46 mmol) and KOH (7.73 g, 137.7 mmol) successively at room temperature under stirring. After 2 hours, TLC showed that the reaction was completed, the reaction mixture was poured into aq. NaHS03 (10%, 200 mL) and extracted with EA (3x200 mL). The combined organic layers were washed with H20 (100 mL) and brine (2x200 mL), dried over anhydrous Na2S04, filtered and concentrated, the crude solid was washed with PE to give a yellow solid B-2 (8.33 g), yield 86.5%. Physical characterization data for B-2 is as follows: LCMS(ESI): calc. C7H4FIN2, 261.9; obs. M+H=262.9 |
86.5% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 20℃; for 2h; | Step 1: Preparation of 4-fluoro-3-iodo-1H-indazole (B-2). To a solution of <strong>[341-23-1]4-fluoroindazole</strong> (B-i) (5.00 g, 36.73 mmol) in DMF (80 mL), was added 12 (18.64 g, 73.46mmol) and KOH (7.73 g, 137.7 mmol) at room temperature while stirring. After 2 hours,TLC indicated that the reaction was complete. The reaction mixture was poured into aq.NaHSO3 (10%, 200 mL) and extracted with EA (3x200 mL). The combined organic layer was washed with H20 (100 mL) and brine (2x200 mL), dried over anhydrous Na2SO4, filtered and concentrated. The crude (solid) was washed with PE to give a yellow solid B-2 (8.33 g), yield 86.5%. Physical characterization data for B-2 was as follows: LCMS(ESI): calc.C7H4FIN2, 261.9; obs. M+H=262.9 |
86.5% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 20℃; for 2h; | Step 1: Preparation of 4-fluoro-3-iodo-1H-indazole (B-2) [0309] To a solution of <strong>[341-23-1]4-fluoroindazole</strong> (B-1) (5.00 g, 36.73 mmol) in DMF (80 mL), was added I2 (18.64 g, 73.46 mmol) and KOH (7.73 g, 137.7 mmol) at room temperature while stirring. After 2 hours, TLC indicated that the reaction was complete. The reaction mixture was poured into aq. NaHSO3 (10%, 200 mL) and extracted with EA (3×200 mL). The combined organic layer was washed with H2O (100 mL) and brine (2×200 mL), dried over anhydrous Na2SO4, filtered and concentrated. The crude (solid) was washed with PE to give a yellow solid B-2 (8.33 g), yield 86.5%. Physical characterization data for B-2 was as follows: LCMS(ESI): calc. C7H4FIN2, 261.9; obs. M+H=262.9. |
83% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 20℃; | A suspension of <strong>[341-23-1]4-fluoro-1H-indazole</strong> (500 mg, 3.67 mmol, 1.00 equiv), iodine (1.87 g, 2.00 equiv) and potassium hydroxide (741 mg, 13.21 mmol, 3.60 equiv) in N,N-dimethylformamide (5mL) was stirred overnight at room temperature. The reaction was quenched by 10% aqueous NaHSO3, extracted with ethyl acetate, washed with brine, dried over anhydrous sodium sulfate, and concentrated under vacuum. The resulting solid was washed with petroleum ether to give 800 mg (83%) of the title compound as a yellow solid. LC-MS (ES, m/z): 263 [M+H]. |
65% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 0 - 20℃; | To a solution of 4-fluoro-lH-indazole (i-3a) (24 g, 180 mmol) in DMF (300ml) was added iodine (56 g, 216 mmol) and KOH (40 g, 720 mmol) at 0C. The resultant mixture was allowed to warm to room temperature and stirred for 5 h. The reaction mixture was slowly quenched with saturated sodium thiosulfate (200 mL) and extracted with EtOAc (500 mL x 3). The combined organic layers were washed, dried and concentrated, and the residue was purified by re-crystallization to afford the title compound (30 g, yield: 65%). LCMS (ESI) calc'd for C7H4FIN2 [M+H]+: 263, found: 263. |
65% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 0 - 20℃; for 5h; | Step 1. Preparation of 4-fluoro-3-iodo-1H-indazole (i-7a).To a solution of <strong>[341-23-1]4-fluoro-1H-indazole</strong> (24 g, 180 mmol) in 300 mL of DMF was added diiodine (56 g, 216 mmol) and potassium hydroxide (40 g, 720 mmol) at 0 C. The resultant mixture was allowed to warm to room temperature and stirred for 5 hours. The reaction mixture was slowly quenched with saturated sodium thiosulfate (200 mL) and extracted with EA (500 mL * 3), and the combined organic layers were washed, dried and concentrated. Theresidue was purified by re-crystallization to afford the title compound (30 g, yield: 65%). LCMS (ESI) calc?d for C7H4FIN2 [M+H]: 263, found: 263. |
65% | With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 0℃; for 20h; | i). Preparation of 4-fluoro-3-iodo-1H-indazole (i-3b) To a solution of <strong>[341-23-1]4-fluoro-1H-indazole</strong> (i-3a) (24 g, 180 mmol) in DMF (300 ml) was added iodine (56 g, 216 mmol) and KOH (40 g, 720 mmol) at 0 C. The resultant mixture was allowed to warm to room temperature and stirred for 5 h. The reaction mixture was slowly quenched with saturated sodium thiosulfate (200 mL) and extracted with EtOAc (500 mL*3). The combined organic layers were washed, dried and concentrated, and the residue was purified by re-crystallization to afford the title compound (30 g, yield: 65%). LCMS (ESI) calc'd for C7H4FIN2 [M+H]+: 263. found: 263. |
With iodine; potassium hydroxide; In N,N-dimethyl-formamide; at 20℃; for 2h; | Example 24A: Preparation of sodium 4-(l-(2-chloro-6-(trifluoromethyl) benzoyl)-4- fluoro-/H-indazol-3-yl)-3-fluorobenzoate (24A)A-5 A-6 24A i) Preparation of 4-fluoro-3-iodo-/H-indazole (A-2). To a solution of <strong>[341-23-1]4-fluoroindazole</strong> A-l (5.00 g, 36.7 mmol) in DMF (80 mL) was added h (18.6 g, 73.5 mmol) and KOH (7.73 g, 134 mmol) successively at rt. After 2 h, the reaction mixture was poured into aq. 10% NaHS03 (200 mL) and extracted with EtOAc (200 mL*3). The combined organic layers were washed with H20 and brine, dried over Na2S04, and concentrated. The crude solid was washed with PE to give the title compound as a yellow solid. LCMS (ESI) calc'd for C7H5FIN2 [M+H]+: 262.9, found: 262.9 |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | With bromine; sodium hydroxide; at 20℃; for 3h; | Example i-3: Preparation of (3-bromo-4-fluoro-1H-indazol-l-yl)(2-chloro-6- (trifluoromethyl)phenyl)methanone Scheme i-3 Step 1. Preparation of 3-bromo-4-fluoro-lH-indazole (i-3b). To a suspension of 4-fluoro- lH-indazole (i-3a) (5 g, 36.8 mmol) in 2M sodium hydroxide solution (100 ml) at rt was added a solution of bromine(5.8 g, 36.8 mmol) in 2M sodium hydroxide solution(60 ml). The reaction mixture was stirred at r.t. for 3h. To the reaction mixture was added sodium bisulfite aqueous solution (10%, lOOmL). The solution was extracted with Ethyl Acetate (2xl50mL). the combined Organic Layer was washed with H20 (3xl00mL) and Brine (2xl50mL). the solution was dried over anhydrous Na2S04 and evaporated. 5.47g product was obtained. Yield 69%. LCMS (ESI) calc'd for C7H4BrFN2 [M+H]+: 215, found: 215. |
69% | With bromine; sodium hydroxide; In water; at 20℃; for 3h; | Step 1. Preparation of 3-bromo-<strong>[341-23-1]4-fluoro-1H-indazole</strong> (i-3b). To a suspension of 4-fluoro- 1H-indazole (i-3a) (5 g, 36.8 mmol) in 2M sodium hydroxide solution (100 ml) at room temperature was added a solution of bromine(5.8 g, 36.8 mmol) in 2M sodium hydroxidesolution (60 ml). The reaction mixture was stirred at room temperature for 3h. To the reaction mixture was added sodium bisulfite aqueous solution (10%, lOOmL). The solution was extracted with ethyl acetate (2xl5OmL). The combined organic layer was washed with H20 (3xlOOmL) and brine (2xl5OmL). The solution was dried over anhydrous Na2SO4 and evaporated. 5.47g product was obtained. Yield 69%. LCMS (ESI) calc?d for C7H4BrFN2[M+H]: 215, found: 215. |
69% | With bromine; sodium hydroxide; In water; at 20℃; for 3h; | To a suspension of 4-fluoro- lH-indazole (i-2a) (5 g, 36.8 mmol) in 2M sodium hydroxide solution (100 ml) at r.t. was added a solution of bromine (5.8 g, 36.8 mmol) in 2M sodium hydroxide solution(60 ml). The reaction mixture was stirred at r.t. for 3 hr. To the reaction mixture was added sodium bisulfite aqueous solution (10%, lOOmL). The solution was extracted with Ethyl Acetate (2xl50mL). The combined Organic Layer was washed with H20 (3xl00mL) and Brine (2xl50mL). The solution was dried over anhydrous Na2S04 and evaporated. 5.47g product was obtained. Yield 69%. LCMS (ESI) calc'd for C7H4BrFN2 [M+H]+: 215, found: 215. |
69% | With bromine; sodium hydroxide; at 20℃; for 3h; | Step 1. Preparation of 3-bromo-<strong>[341-23-1]4-fluoro-1H-indazole</strong> (i-2b). To a suspension of 4-fluoro- 1H-indazole (i-2a) (5 g, 36.8 mmol) in 2M sodium hydroxide solution (100 ml) at room temperature was added a solution of bromine (5.8 g, 36.8 mmol) in 2M sodium hydroxide solution(60 ml). The reaction mixture was stirred at room temperature for 3 hr. To thereaction mixture was added sodium bisulfite aqueous solution (10%, 1 OOmL). The solution was extracted with ethyl acetate (2xl5OmL). The combined organic layer was washed with H20 (3xlOOmL) and brine (2xl5OmL). The solution was dried over anhydrous Na2SO4 and evaporated. 5.47g product was obtained. Yield 69%. LCMS (ESI) calc?d for C7H4BrFN2 [M+H]: 215, found: 215. |
69% | With bromine; sodium hydroxide; In water; at 20℃; for 3h; | Step 1. Preparation of 3-bromo-<strong>[341-23-1]4-fluoro-1H-indazole</strong> (i-3b) [0267] To a suspension of <strong>[341-23-1]4-fluoro-1H-indazole</strong> (i-3a) (5 g, 36.8 mmol) in 2M sodium hydroxide solution (100 ml) at room temperature was added a solution of bromine (5.8 g, 36.8 mmol) in 2M sodium hydroxide solution (60 ml). The reaction mixture was stirred at room temperature for 3 h. To the reaction mixture was added sodium bisulfite aqueous solution (10%, 100 mL). The solution was extracted with ethyl acetate (2×150 mL). The combined organic layer was washed with H2O (3×100 mL) and brine (2×150 mL). The solution was dried over anhydrous Na2SO4 and evaporated. 5.47 g product was obtained. Yield 69%. LCMS (ESI) calc'd for C7H4BrFN2 [M+H]+: 215. found: 215. |