反应详情

By the method of Example 2, 2-(acetamino)phenylacetic acid is reacted with 5,6-diamino-1-(2-phenylethyl)-3-propyluracil to yield 8-(2-acetaminobenzyl)-3-(2-phenylethyl)-1-propylxanthine. By methods well known in the art, 8-(2-acetaminobenzyl)-3-(2-phenylethyl)-1-propylxanthine is hydrolyzed with base to yield 8-(2-aminobenzyl)-3-(2-phenylethyl)-1-propylxanthine. In turn, 5,6-diamino-1-(2-(phenylethyl)-3-propyluracil is made by the synthetic methods of Example 1, starting with phenethylamine hydrochloride.