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Example 102 (method 2) (Synthetic Intermediate)(2-Bromo-pyridin-4-yl)-[5-(4-dimethylamino-piperidin-1-yl)-1-(2-trimethylsilanyl- ethoxymethyl)-1 H-benzoimidazol-2-yl]-methanone (as a mixture with the 6- regioisomer). Starting with Example 25, Step 1 was performed by following procedures describe for Example 42. Step 2 and Step 3 were performed by following procedures describe for Example 48.
Example 102 (method 2) (Synthetic Intermediate)(2-Bromo-pyridin-4-yl)-[5-(4-dimethylamino-piperidin-1-yl)-1-(2-trimethylsilanyl- ethoxymethyl)-1 H-benzoimidazol-2-yl]-methanone (as a mixture with the 6- regioisomer). Starting with Example 25, Step 1 was performed by following procedures describe for Example 42. Step 2 and Step 3 were performed by following procedures describe for Example 48.
With 2,3-dicyano-5,6-dichloro-p-benzoquinone; In 2-methoxy-ethanol; at 120℃; for 24.0h;Sealed tube;
Put 0.1mmol oxidized lignin model substrate 1 in a 10mL pressure tube, add 0.01mmol HNO3, 1mL DMSO and 0.2mmol o-phenylenediamine 2,After tightening the cap, heat the resulting reaction solution (the concentration of oxidized lignin in the reaction solution is 0.1 mmol/mL) in an oil bath at 100C for 12 hours,The decomposition reaction is carried out. After the reaction is completed, the obtained product is taken out and the solvent is drained and separated by a column to obtain two nitrogen-containing heterocyclic products.
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