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CAS No. : | 228251-24-9 | MDL No. : | MFCD08689713 |
Formula : | C6H3BrClNO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | YGPYNLZCNDPHTQ-UHFFFAOYSA-N |
M.W : | 220.45 | Pubchem ID : | 23090988 |
Synonyms : |
|
Num. heavy atoms : | 10 |
Num. arom. heavy atoms : | 6 |
Fraction Csp3 : | 0.0 |
Num. rotatable bonds : | 1 |
Num. H-bond acceptors : | 2.0 |
Num. H-bond donors : | 0.0 |
Molar Refractivity : | 42.33 |
TPSA : | 29.96 Ų |
GI absorption : | High |
BBB permeant : | Yes |
P-gp substrate : | No |
CYP1A2 inhibitor : | Yes |
CYP2C19 inhibitor : | No |
CYP2C9 inhibitor : | No |
CYP2D6 inhibitor : | No |
CYP3A4 inhibitor : | No |
Log Kp (skin permeation) : | -6.25 cm/s |
Log Po/w (iLOGP) : | 1.61 |
Log Po/w (XLOGP3) : | 1.97 |
Log Po/w (WLOGP) : | 2.31 |
Log Po/w (MLOGP) : | 1.16 |
Log Po/w (SILICOS-IT) : | 2.83 |
Consensus Log Po/w : | 1.98 |
Lipinski : | 0.0 |
Ghose : | None |
Veber : | 0.0 |
Egan : | 0.0 |
Muegge : | 0.0 |
Bioavailability Score : | 0.55 |
Log S (ESOL) : | -2.83 |
Solubility : | 0.329 mg/ml ; 0.00149 mol/l |
Class : | Soluble |
Log S (Ali) : | -2.22 |
Solubility : | 1.31 mg/ml ; 0.00596 mol/l |
Class : | Soluble |
Log S (SILICOS-IT) : | -3.45 |
Solubility : | 0.0784 mg/ml ; 0.000356 mol/l |
Class : | Soluble |
PAINS : | 0.0 alert |
Brenk : | 2.0 alert |
Leadlikeness : | 1.0 |
Synthetic accessibility : | 1.61 |
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P280-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302 | Packing Group: | N/A |
GHS Pictogram: |
* 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 |
---|---|---|
74% | With diisobutylaluminium hydride In dichloromethane at -78℃; for 2 h; | To a (-78eC) cooled and stirred solution of methyl 5-bromo-2-chloronicotinate (10.0 g, 39.9 mmol) in DCM (100 mL) was added diBAL-H (43.9 mL, 43.9 mmol, 1.6 M in hexane) dropwise and then stirred for 2h at the same temperature. Reaction was quenched with 2M aqueous HCI (50 mL) and stirred for 30 min at room temperature. Reaction mixture was filtered through the celite. The layers were separated and the aqueous layer was extracted with ethyl acetate (2/1,100 mL). The combined organic layer was washed with brine (100 mL), dried (Na2S04) and filtered. The filtrate was concentrated under vacuum and the crude product was purified by flash column chromatography (silica gel, 20-30percent EtOAc in hexane system as eluent) to afford 6.50 g (74percent) of the titled compound. 1HNMR (400 MHz, DMSO- d6) U10.19 (s, 1H), 8.86 (brs, 1H), 8.40 (brs, 1H); GCMS (m/z) 218.94(M)\ |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
45% | With lithium aluminium tetrahydride In tetrahydrofuran at -10 - 20℃; | Preparation of S-bromo^-chloronicotinaldehyde (D-2-3).To a stirred solution of compound D-2-2 (25 g, 89.4 mmol) in dry THF (200 mL) was added LiAIH4 (1.7 g, 27 mmol) at -10 0C under N2 atmosphere. After the addition, the reaction mixture was allowed to warm up to room temperature and stirred overnight. TLC (petroleum ether/EtOAc 5:1 ) indicated complete consumption of starting material. To the reaction mixture was added 1 N KHSO4 (200 mL) and extracted with EtOAc (300 mL><3). The combined organic layers were washed with saturated aqueous NaCI (200 mL), dried over Na2SO4 and concentrated in vacuo to yield crude compound D-2-3, which was purified by column chromatography (silica gel, petroleum ether/EtOAc 30:1 ) to yield pure compound D-2-3 (8.0 g, 45percent) as a white solid. |
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