Structure of 53297-70-4
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CAS No. : | 53297-70-4 |
Formula : | C7H10N2O2S |
M.W : | 186.23 |
SMILES Code : | C1=CC(=CC(=C1N)C)[S](N)(=O)=O |
MDL No. : | MFCD00466840 |
InChI Key : | IGQGXIVCGKMRAM-UHFFFAOYSA-N |
Pubchem ID : | 143037 |
GHS Pictogram: |
![]() |
Signal Word: | Warning |
Hazard Statements: | H302-H315-H319-H335 |
Precautionary Statements: | P261-P305+P351+P338 |
Num. heavy atoms | 12 |
Num. arom. heavy atoms | 6 |
Fraction Csp3 | 0.14 |
Num. rotatable bonds | 1 |
Num. H-bond acceptors | 3.0 |
Num. H-bond donors | 2.0 |
Molar Refractivity | 46.81 |
TPSA ? Topological Polar Surface Area: Calculated from |
94.56 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.06 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
-0.18 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
1.31 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
0.05 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
-0.3 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.39 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.19 |
Solubility | 12.2 mg/ml ; 0.0653 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.35 |
Solubility | 8.32 mg/ml ; 0.0447 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-1.99 |
Solubility | 1.89 mg/ml ; 0.0102 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 |
No |
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 |
-7.56 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 |
1.0 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) |
1.66 |
* 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 |
---|---|---|
100% | With hydrogenchloride; In ethanol; water; at 80℃; | A mixture of N-(2-methyl-4-sulfamoylphenyl)acetamide (5.1 g, 22.3 mmol), HCl (2 N, 76.5 ml) and EtOH (100 ml) was refluxed overnight. Then the mixture was neutralized with Na2CO3 (aq) to pH = 8. The mixture was extracted with EA (80 mL x 4), dried over Na2SO4, and concentrated to obtain 4-amino-3-methylbenzenesulfonamide as a pale solid (4.9 g, yield 100%). |
100% | With hydrogenchloride; water; In ethanol;Reflux; | Compound 27-6 (0455) A mixture of 27-5 (5.1 g, 22.3 mmol), HCl (2 N, 76.5 ml) and EtOH (100 ml) was refluxed overnight. Then the mixture was neutralized with Na2CO3(aq) to PH=8. The mixture was extracted with EA (80 ml×4), dried over Na2SO4, and concentrated to give 27-6 as a pale solid (4.9 g, yield 100%). |
93% | A round-bottom flask was equipped with a stir bar, a reflux condenser and nitrogen on demand. Into the flask were placed sulfonamide 465 (8.4 g, 36.80 mmol), ethyl alcohol (200 mL) and 2N hydrochloric acid (128 mL). The resulting mixture was allowed to heat to reflux overnight, after which time it was allowed to cool to RT and was neutralized with saturated, aqueous sodium bicarbonate. It was then poured into a separatory funnel containing water and ethyl acetate, the organic layer was collected, washed with water, brine, dried over MgSO4, filtered and the solvents were removed under reduced pressure to afford a tan solid (6.35 g, 93%), which was used without further purification. 1H NMR (DMSO-d6, 400 MHz) delta 2.06 (s, 3H), 5.54 (s, 2H), 6.58 (d, J= 12 Hz, 1H), 6.82 (s, 2H), 7.30 (d, J= 12 Hz, 1H), 7.33 (s, 1H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With phosphorus pentachloride; In chloroform; toluene; at 20 - 70℃; for 4.5h; | The compounds in Table 2 below were prepared in accordance with the procedures set forth in Example 1, Step 3 using either [(1-mesityl-1H-tetrazol-5-yl)thio]acetic acid (prepared as described in Example 1, Steps 2 and 3) or the appropriate counterpart and the appropriate amine in place of 2-chloro-3-aminopyridine. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69% | With pyridine; In chloroform; at 0 - 20℃; for 18.3333h; | A solution of 466 (5.0 g, 26.85 mol) and pyridine (2.4 mL, 29.53 mmol) in 150 mL of chloroform was cooled to 0 C in an ice bath. Bromoacetyl bromide (2.6 mL, 29.53 mmol) was added dropwise over 20 min, and the resulting mixture was allowed to slowly warm to room temperature as it was stirred for 18 h. The reaction mixture was then poured into 150 mL of water and extracted with two 100-mL portions of CH2Cl2. Both the organic and aqueous layers were filtered to yield a beige solid. This solid was suspended in 40 mL of 1 N HCl and stirred several minutes. The solid was then filtered and rinsed with CH2Cl2, MeOH, and hexanes to yield 470 (5.705 g, 69%): 1H NMR (CDCl3, 400 MHz) delta 9.84 (s, 1H), 7.66-7.56 (m, 3 H), 7.23 (br s, 2 H), 4.09 (s, 2 H), 2.24 (s, 3 H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
90% | A 100 mL round bottom was charged with <strong>[53297-70-4]4-amino-3-methyl-benzenesulfonamide</strong> (0.260 g, 1.40 mmol) and dissolved in 5 mL of acetone and NaHCO3 (0.117 g, 1.40 mmol) under nitrogen. To the stirred mixture was added dropwise 162b (0.500 g, 1.40 mmol) dissolved in 7 mL of acetone and resulting mixture stirred for 24 h at RT. When starting material was consumed the reaction mixture was cooled to 0 C. and quenched with 10% aqueous HCl. The reaction mixture was extracted with EtOAc and washed with aqueous 10% HCl, water, and brine. The organic extracts were dried (Na2SO4) and filtered. The solvent was removed in vacuo to yield a crude solid which was purified by SiO2 chromatography eluting with DCM/MeOH (93:7) to afford 0.64 g (90%) of I-42: ms (M-H)=507; mp: 250.1-252.3 C.; Elemental Analysis: calcd; C, 51.98; H, 3.17; N, 8.27, found: C, 51.20; H, 3.01; N, 8.10 (with 0.4M H2O). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
87% | A 100 if L round bottom flask was charged with <strong>[53297-70-4]4-amino-3-methyl-benzenesulfonamide</strong> (0.092 g, 0.495 mmol), dissolved in 2 mL of acetone and NaHCO3 (0.040 g, 0.495 mmol) was added. To the stirred suspension under a nitrogen atmosphere was added dropwise a solution of the acid chloride from step 4 (0.200 g, 0.495 mmol) dissolved in 3 mL acetone and the reaction was stirred for 24 h at RT. The reaction mixture was cooled to 0 C. and quenched with 10% aqueous HCl. The aqueous phase was extracted with EtOAc and the combined extracts were washed with aqueous 10% HCl, water, and brine. The organic phase was dried(Na2SO4), filtered and the solvent was removed in vacuo. The crude product was purified by SiO2 chromatography eluting with DCM/MeOH (93:7) to afford 0.240 g (87%) of I-189: ms (M-H)=551, mp 244.0-245.1; Anal. CHN; calcd C, 47.80; H, 2.92; N, 7.60; found C, 47.51; H, 2.80; N, 7.49. | |
87% | A 100 if L round bottom flask was charged with <strong>[53297-70-4]4-amino-3-methyl-benzenesulfonamide</strong> (0.092 g, 0.495 mmol), dissolved in 2 mL of acetone and NaHCO3 (0.040 g, 0.495 mmol) was added. To the stirred suspension under a nitrogen atmosphere was added dropwise a solution of the acid chloride from step 4 (0.200 g, 0.495 mmol) dissolved in 3 mL acetone and the reaction was stirred for 24 h at RT. The reaction mixture was cooled to 0 C. and quenched with 10% aqueous HCl. The aqueous phase was extracted with EtOAc and the combined extracts were washed with aqueous 10% HCl, water, and brine. The organic phase was dried(Na2SO4), filtered and the solvent was removed in vacuo. The crude product was purified by SiO2 chromatography eluting with DCM/MeOH (93:7) to afford 0.240 g (87%) of I-189: ms (M-H)=551, mp 244.0-245.1; Anal. CHN; calcd C, 47.80; H, 2.92; N, 7.60; found C, 47.51; H, 2.80; N, 7.49. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
To a mixture of 2-aminotoluene-5-sulfonic acid (1.0 wt, 1.0 eq. 6.41 mol) in dichloromethane (15 vol) and N,N-dimethylformamid (0.43 wt, 1.1 equiv.,) was added oxalyl chloride (1.53 wt, 2.25 equiv.) over a period of 120 minutes. Additional dichloromethane (1 volume) was added and the resulting mixture stirred at ambient temp 3 hours. IPC of methanol-quenched aliquot (TLC, 8% MeOH-DCM and HPLC normal phase fast LC) showed complete conversion to activated, protected intermediate. Methylene chloride was removed under gentle reflux at atmospheric pressure to approximately 5 volumes and replaced with dimethoxyethane (7.5 vol). The mixture was evaporated under vacuum with a jacket temperature of 65 degrees to approximately 5 volumes and diluted with additional DME (2.5 volumes). The resulting mixture was cooled to 15 degrees and treated with a solution of 28% ammonium hydroxide (2.23 vol., 3 equiv.) added over a period of 15 minutes which results in momentary dissolution of the intermediate followed quickly by precipitation of the protected intermediate. IPC (TLC, normal phase fast LC) showed complete conversion to protected sulphonamide. The intermediate was filtered, and the solid washed with water (2×1 vol), and then placed back in the reactor. The reactor was charged with a solution of LiOH (0.45 wt., 2 equiv) in 9:1 water:methanol (8 vol based on original input). The resulting solution was warmed to 50 degrees for 5 hours or until IPC (TLC and normal phase fast LC) showed complete hydrolysis to a compound of formula (V). Decolorizing carbon (1.0 weight %) and celite (5.0 weight %) was added and the mixture stirred briefly and filtered through filter cloth into reactor B. The solution was cooled to 25 degrees and adjusted to pH 9 with addition 6 N hydrochloric acid (approximately 1.6 vol.) over a period of 15 minutes with vigorous stirring. The solution was maintained at 45 to 55 degrees for a 2 to 4 hour period to allow conversion from the original amorphous precipitate to a crystalline solid, then cooled to 20 degrees and filtered. The resulting crystalline solid was washed with 90% water/methanol (1 volume) followed by water (2×1 volumes) and dried in vacuum oven at 50 degrees with nitrogen sweep for 16 hours. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
a. 2-Chloro-N-(2-methyl-4-sulphamoylphenyl)-acetamide <strong>[53297-70-4]2-methyl-4-sulphamoylaniline</strong> (18,6 g) and alpha-chloroacetyl chloride (30g) were refluxed together 30 min. and the mixture worked up as in Example 2(a) to yield 11 g, m.p. 193-194 C9 H11 ClN2 O3 S (262,7) Requires: C: 41,14 H: 4,22 N: 10,66%. Found: C: 41,23 H: 4,30 N: 10,65%. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With N-ethyl-N,N-diisopropylamine; In dichloromethane; N,N-dimethyl-formamide; at 0℃; for 0.5h; | A cooled (0 0C) solution of e-chloropyhmidine^-carbonyl chloride (4.56 g; 25.8 mmol) in DCM (80 ml) was treated dropwise over 30 minutes with a solution of <strong>[53297-70-4]4-amino-3-methyl-benzenesulfonamide</strong> (4.00 g; 21.5 mmol) and DIEA (7.40 ml; 43.0 mmol) in anhydrous DMF (10 ml_). At the end of addition the reaction mixture was concentrated under vacuum and the residue was taken up in EtOAc (200 mL). The organic phase was washed with water/brine (80 mL). A precipitate was formed, which was filtered and dried under vacuum to afford the crude product which was recrystallized from EtOH. The title product was obtained as a white solid. 1H NMR (300MHz, DMSO-d6) delta 10.65 (1 H, br s), 9.31 (1 H, d, J= 1.1 Hz), 8.24 (1 H, d, J= 1.1 Hz), 7.85-7.68 (3H, m), 7.33 (2H, br s), 2.36 (3H, s). MS (ESI-): 325.1. HPLC (Condition A): Rt 2.73 min (HPLC purity 100.0%). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
A mixture of <strong>[53297-70-4]4-amino-3-methylbenzenesulfonamide</strong> (0.075 g), 4-methylbenzene-sulfonic acid (0.1 g) and 2-chloro-9-cyclopentyl-7-methyl-purin-8-one (Method 4, 0.075 g) in 4-methyl-2-pentanol (1.5 mL) was heated at 2000C for 5 mins by microwave then cooled to r.t. The reaction was repeated on an identical scale but using 1-butanol (1.5 mL) in place of 4-methyl-2-pentanol. The combined reaction mixtures were purified by SCX, eluting with 2M NH3 in MeOH to give a coloured gum. The gum was purified by reverse phase basic HPLC to afford the title compound (0.05 g, 21%) as a colourless solid; 1H NMR: (CDCl3) 1.69-1.75 (2H, m), 1.96-2.05 (4H, m), 2.26-2.31 (2H, m), 2.40 (3H, s), 3.41 (3H, s), 4.70 (2H, s), 4.79-4.88 (IH, m), 6.98 (IH, d), 7.75 (IH, d), 7.77-7.79 (IH, m), 7.90 (IH, s), 8.54 (IH, d); m/r. MH+ 403; EAA: 1.28; EAA2: 0.0166. | ||
A mixture of <strong>[53297-70-4]4-amino-3-methylbenzenesulfonamide</strong> (0.075 g), 4-methylbenzene-sulfonic acid (0.1 g) and 2-chloro-9-cyclopentyl-7-methyl-purin-8-one (Method 4, 0.075 g) in 4-methyl-2-pentanol (1.5 mL) was heated at 2000C for 5 mins by microwave then cooled to r.t. The reaction was repeated on an identical scale but using 1-butanol (1.5 mL) in place of 4-methyl-2-pentanol. The combined reaction mixtures were purified by SCX, eluting with 2M NH3 in MeOH to give a coloured gum. The gum was purified by reverse phase basic HPLC to afford the title compound (0.05 g, 21%) as a colourless solid; 1H NMR: (CDCl3) 1.69-1.75 (2H, m), 1.96-2.05 (4H, m), 2.26-2.31 (2H, m), 2.40 (3H, s), 3.41 (3H, s), 4.70 (2H, s), 4.79-4.88 (IH, m), 6.98 (IH, d), 7.75 (IH, d), 7.77-7.79 (IH, m), 7.90 (IH, s), 8.54 (IH, d); m/r. MH+ 403; EAA: 1.28; EAA2: 0.0166. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
To a solution of Intermediate 1 (0.10 g, 0.381 mmol) in CH2CI2 (5.0 mL) was added diisopropyl ethyl amine (0.1 mL, 0.572 mmol) and a 50% solution of propyiphosphonic anhydride in ethyl acetate (0.340 mL, 0.572 mmol). The mixture was stirred for 30 minutes at room temperature. 4-Amino-3- methylbenzenesulfonamide [CAS No. 53297-70-4] (0.071 g, 0.381 mmol) was added to the reaction mixture at room temperature and stirred overnight. The reaction mixture was then poured onto ice water (25 mL) and CH2CI2 (25 mL) added. The organic layer was separated and washed with brine (25 mL), dried with Na2SO4, filtered and concentrated to dryness. The residue was triturated with Ch C^/Hexanes and then the solid was purified with a MPLC to give the title compound as a white solid.1H NMR (300 MHz, DMSO-d6) delta 10.95 (s, 1 H), 9.03 (s, 1 H), 8.46 (d, J = 8.5 Hz, 1 H), 7.97 (d, J = 9.1 Hz, 1 H), 7.79-7.65 (m, 2H), 7.33-7.18 (m, 3H), 3.98 (s, 3H), 2.81 -2.71 (m, 2H), 2.43 (s, 3H), 1 .64-1 .50 (m, 2H), 0.94 (t, J = 7.4 Hz, 3H). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
31% | In acetic acid; at 120℃; | A mixture of 3-(2-(3-(5-(2-methyl-1H-imidazol-1-yl)thiophen-2-yl)-3-oxopropyl)-1,3-dioxolan-2-yl)propanoic acid (200 mg, 0.549 mmol) and <strong>[53297-70-4]4-amino-3-methylbenzenesulfonamide</strong> (123 mg, 0.659 mmol) in 3 mL of AcOH was heated at 120 C overnight , then the solvent was removed under reduced pressure and the residue was purified by Pre-HPLC. The product was obtained (80 mg, yield 31%) with purity 99.33% (254 nm) and 99.47% (214 nm). |
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