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ChemicalBook CAS DataBase List GSK 2830371

GSK 2830371 synthesis

4synthesis methods
21427-62-3 Synthesis
2,5-Dichloro-3-nitropyridine

21427-62-3
227 suppliers
$6.00/1g

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Yield:-

Steps:

Multi-step reaction with 5 steps
1.1: sodium hydride / tetrahydrofuran; mineral oil / 3.83 h / 20 °C / Inert atmosphere
1.2: 12.5 h / Reflux
1.3: pH 9
2.1: tin(II) chloride dihdyrate / ethyl acetate / 3 h / 85 °C / Inert atmosphere
3.1: methanol / 2 h / 50 °C / Inert atmosphere
4.1: sodium cyanoborohydride / methanol / 14 h / 0 - 20 °C / Inert atmosphere
4.2: pH 4
5.1: N-ethyl-N,N-diisopropylamine; 4-methyl-morpholine; HATU / N,N-dimethyl-formamide / 0.5 h / 20 °C
5.2: 20 °C

References:

GLAXOSMITHKLINE LLC;BOBKO, Mark, A.;DARCY, Michael, G.;EVANS, Karen, A.;FAITG, Thomas, H.;KAURA, Arun, Chandar;PENG, Xin;SARPONG, Martha, A.;SEEFELD, Mark, A.;SU, Dai-shi WO2012/149102, 2012, A1

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