Structure of 54013-06-8
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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. : | 54013-06-8 |
Formula : | C7H9N3O2 |
M.W : | 167.17 |
SMILES Code : | NC1=CN=C(C=N1)C(=O)OCC |
MDL No. : | MFCD08437665 |
InChI Key : | BLPDHDYKCBRILY-UHFFFAOYSA-N |
Pubchem ID : | 22271413 |
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 | 0.29 |
Num. rotatable bonds | 3 |
Num. H-bond acceptors | 4.0 |
Num. H-bond donors | 1.0 |
Molar Refractivity | 42.52 |
TPSA ? Topological Polar Surface Area: Calculated from |
78.1 Ų |
Log Po/w (iLOGP)? iLOGP: in-house physics-based method implemented from |
1.36 |
Log Po/w (XLOGP3)? XLOGP3: Atomistic and knowledge-based method calculated by |
-0.07 |
Log Po/w (WLOGP)? WLOGP: Atomistic method implemented from |
0.24 |
Log Po/w (MLOGP)? MLOGP: Topological method implemented from |
-0.68 |
Log Po/w (SILICOS-IT)? SILICOS-IT: Hybrid fragmental/topological method calculated by |
0.32 |
Consensus Log Po/w? Consensus Log Po/w: Average of all five predictions |
0.23 |
Log S (ESOL):? ESOL: Topological method implemented from |
-1.0 |
Solubility | 16.6 mg/ml ; 0.099 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (Ali)? Ali: Topological method implemented from |
-1.12 |
Solubility | 12.7 mg/ml ; 0.0761 mol/l |
Class? Solubility class: Log S scale |
Very soluble |
Log S (SILICOS-IT)? SILICOS-IT: Fragmental method calculated by |
-1.77 |
Solubility | 2.86 mg/ml ; 0.0171 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 |
-7.37 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) |
2.13 |
* 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 |
---|---|---|
12%; 20% | With dmap; 1-ethyl-(3-(3-dimethylamino)propyl)-carbodiimide hydrochloride; N-ethyl-N,N-diisopropylamine; In dichloromethane; N,N-dimethyl-formamide; at 20℃; | Example 15 5-[3-(4-Fluoro-phenyl)-2-(4-methanesulfonyl-phenyl)-propionylamino]-pyrazine-2-carboxylic acid ethyl ester To a suspension of a mixture of <strong>[54013-06-8]5-amino-pyrazine-2-carboxylic acid ethyl ester</strong> and 5-amino-pyrazine-2-carboxylic acid methyl ester (approximately 2:1) in CH2Cl2 (40 mL) was added DIEA (1.04 mL, 6 mmol) and DMF (5 mL). To the resulting suspension was added 3-(4-fluorophenyl)-2-(4-methanesulfonylphenyl)propionic acid (prepared as described in example 14, 1.5 g, 4.7 mmol), DMAP (0.17 g, 1.4 mmol) and EDC.HCl (1.08 g, 5.6 mmol) followed by additional CH2Cl2 (10 mL) and DMF (6 mL). The resulting solution was stirred at room temperature overnight. The reaction mixture was poured onto 0.01% aqueous HCl and extracted 3 times into CH2Cl2. The combined organic layer was dried over Na2SO4 and concentrated in vacuo. Purification by chromatography (silica, 30%-50% ethyl acetate/hexanes stepwise gradient), followed by re-purification of the mixed fractions by chromatography (50% ethyl acetate/hexanes) afforded the front-running product, 5-[3-(4-fluorophenyl)-2-(4-methanesulfonylphenyl)-propionylamino]-pyrazine-2-carboxylic acid ethyl ester (438 mg, 20%): m.p. 99-100 C., LC/MS-ESI observed [M+H]+ 472; and the back-running product, 5-[3-(4-fluoro-phenyl)-2-(4-methanesulfonylphenyl)propionylamino]-pyrazine-2-carboxylic acid methyl ester (260 mg, 12%): m.p. 106-107 C., LC/MS-ESI observed [M+H]+ 458. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
69 mg | With N-ethyl-N,N-diisopropylamine; at 120℃;Molecular sieve; | Intermediate Example lnt-5: Ethyl 2-(4-{1-[(ferf-butoxycarbonyl)amino]cyclobutyl}phenyl)-3-phenyl- imidazo[1,2-a]pyrazine-6-carboxylate To a mixture of crude fert-butyl (1-{4-[bromo(phenyl)acetyl]phenyl}cyclobutyl)- carbamate [lnt-1-A] (213 mg, 0.38 mmol, 1.0 eq), ethyl 5-aminopyrazine-2- carboxylate (CAS-Nr. 54013-06-8, 70.5 mg, 0.42 mmol, 1.1 eq.) and diisopropylethylamine (0.055 ml_, 0.42 mmol, 1.1 eq) in 2.3 ml_ butyronitrile was added pre- dried 3A mol sieves. The mixture was heated overnight at 120. The reaction mixture was partitioned between DCM/water and was filtered through a phase separator. The remaining volatile organic components were removed by the use of a rotary evaporator. In parallel we conducted the same experiment in the absence of diisopropylethylamine following the same protocol. The crude materials of both experiments were combined and purified via MPLC (Biotage Isolera, 25 g Snap- cartridge; eluent: hexane/ethyl acetate (1/1) -> ethyl acetate) to deliver 69 mg (14%, yield based on combined amount of fert-butyl (1-{4-[bromo(phenyl)acetyl]- phenyl}cyclobutyl)carbamate) of the title compound. UPLC-MS (Method 1): RT = 1.43 min; m/z = 513 (M+H) +. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
38 mg | at 120℃; for 1.5h; | Example 5: Ethyl 2-[4-(1-aminocyclobutyl)phenyl]-3-phenylimidazo[1,2- a razine-6-carboxylate To a mixture of crude fert-butyl (1-{4-[bromo(phenyl)acetyl]phenyl}cyclobutyl)- carbamate [lnt-1-A] (245 mg, 0.44 mmol, 1.0 eq) and ethyl 5-aminopyrazine-2- carboxylate (CAS-Nr. 54013-06-8, 81.1 mg, 0.49 mmol, 1.1 eq.) in 2.7 mL bu- tyronitrile was heated at 120 for 1.5h. A substan tial amount of the deprotected free amine was detected by UPLC analysis. For isolation, the volatile components were removed using a rotary evaporator and the resulting crude material was purified via MPLC [Biotage Isolera, 25 g Snap-cartridge; eluent: DCM -> DCM/ethanol (95/5)] to deliver 38 mg (21 %) of the title compound. UPLC-MS (Method 1): RT = 0.90 min; m/z = 414 (M+H)+. 1H-NMR (400 MHz, DMSO-d6): delta [ppm] = 1.26 (t, 3H), 1.60 (m, 1 H), 1.88-2.07 (m, 3H), 2.12 (s br, 2H), 2.26-2.37 (m, 2H), 4.30 (q, 2H), 7.39 (d, 2H), 7.57(d, 4H), 7.60-7.68 (m, 3H). |
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