2-Aminothiazole → 4-(2-Methylpropoxy)-3-nitrobenzaldehyde

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Reaktionsschritte

4-(2-Methylpropoxy)-3-nitrobenzaldehyde (0.83 g, 75%) was prepared from 2-methyl-propanol (0.46 ml, 5.0 mmol) and 4-fluoro-3-nitrobenzaldehyde (0.77 g, 5.0 mmol) following the general procedure G. This was reduced to 5-formyl-2-(2-methylpropoxy)-aniline (0.49 g, 68%) following general procedure B. 1-(5-Formyl-2-isobutoxy-phenyl)-3-thiazol-2-yl-urea (208 mg, 65%) was prepared from 5-formyl-2-(2-methylpropoxy)aniline (193 mg, 1.0 mmol) and 2-aminothiazole (100 mg, 1.0 mmol) following the general procedure D.

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