反应详情

An amidation reaction was carried out under the same conditions as in Example 1 using 6.48 g (30 mmol) of 4-amino-1-benzyl-5-imidazole carboxamide obtained in Reference Example 2 and using, instead of benzoyl chloride, 4-methoxyphenylacetyl chloride which was separately prepared according to a conventional method. A crude amide product was obtained after the post-treatment. The crude amide was subjected to a cyclization reaction for 13 hours under the same conditions as in Example 1. 1.92 g of 7-benzyl-2-(4-methoxybenzyl)hypoxanthine was obtained after the post-treatment. Yield 18% (2 steps).

1. customAn amidation reaction
2. customobtained in Reference Example 2
3. customwas separately prepared
4. customA crude amide product was obtained after the post-treatment