反应详情

[step 1] (E)-2-{8-(4-Methyl-2-propylbenzimidazol-1-yl)methyl-6,11-dihydrodibenzo[b,e]oxepin-11-ylidene}acetonitrile (310 mg, 0.74 mmol) obtained in Example 104, step 1 was dissolved in ethanol (3.7 mL), hydroxylamine (50% aqueous solution, 2.3 mL, 36.95 mmol) was added, and the mixture was stirred under reflux for 16 hr. Water was added to the mixture, and the precipitated solid was collected by filtration to give (E)-2-[8-(4-methyl-2-propylbenzimidazol-1-yl)methyl-6,11-dihydrodibenzo[b,e]oxepin-11-ylidene]acetaldoxime (304 mg, 91%). [step 2] Using (E)-2-[8-(4-methyl-2-propylbenzimidazol-1-yl)methyl-6,11-dihydrodibenzo[b,e]oxepin-11-ylidene]acetaldoxime (150 mg, 0.33 mmol) obtained in step 1 and in the same manner as in Example 107, the title compound (compound 108) (7.1 mg, 5%) was obtained.

1. temperatureunder reflux for 16 hr
2. filtrationthe precipitated solid was collected by filtration