反应详情

By replacing in Example 2, step D, 3-benzyloxy-5-nitro-4-phenylbenzoic acid with 5-nitro-4-phenyl-3-(3-thenyloxy)benzoic acid, and following the procedure described, 5-amino-4-phenyl-3-(3-thenyloxy)benzoic acid is obtained as a hemihydrate with a melting point of 139°-140° C.