Reference of 90145-48-5, The major producers of chemicals have been the Europe, Japan and China. Due to the growing call for a cleaner, greener environment, people will have to find innovative ways to maintain their relevance. Here is a compound 90145-48-5, name is 5-Bromopyridine-2-carboxamide. This compound has unique chemical properties. The synthetic route is as follows.
A mixture of 1-1-isopropyl-3-methyl-1H-pyrazol-4-yf)-3-methyl-8-(4,4 5,5-tetramethyl- (1 ,3,2]dioxaborolan-2-yl)-1,3-d.hydroimidazo[4,5-c]quinolin-2-one (Stage 112.1.1 , 34 mg, 0.075 mmol), delta-bromo-py?dine^-carboxylic acid amide (Combi-Blocks, San Diego, USA, 20 mg, 0 099 mmol), and PdCI2(PPh3)2 (3.5 mg, O 005 mmol) in DMF (O 9 ml) and 1 M aqueous K2CO3 (0.187 ml) was stirred under argon at 105 C for 2.5 h The RM was cooled to rt. The mixture was diluted with MeOH + 3 drops TFA and purified directly by Prep.HPLC (H2O (0.1% TFA)/CH3CN 97:3 to 55:45). The fractions containing product were collected together and basifted with NaHCO3 (0.3 g), before being concentrated The resulting layer was extracted with DCM, washed with brine, dned over Na2SO4, filtered and evaporated to dryness to give the title compound as a white solid (HPLC: tR 2.44 mm (Method A): M+H ~ 442 MS-ES; 1H-NMR (dbeta-DMSO, 400 MHz) 9.00 (s, 1H). 8 75-8 69 (m, 1H), 8.24-8.19 (m, 1H), 8.18-8.07 (m, 2H) 8.07-7.98 (m, 3H), 7.75-7.67 (m, 1 H), 7 61-7.56 (m, 1H)1 4.61-4 48 (m, 1H). 3.58 (s, 3H), 1 97 (s, 3H), 1.45 (s, 3H), 1.43 (s, 3H)).
While traditionally a conservative industry, chemical producers will need to modernize their PR strategies to stay relevant.we look forward to future research findings about 90145-48-5, 5-Bromopyridine-2-carboxamide.
Reference:
Patent; NOVARTIS AG; FURET, Pascal; KALTHOFF, Frank Stephan; MAH, Robert; RAGOT, Christian; STAUFFER, Frederic; WO2010/139731; (2010); A1;,
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