反应详情

0.9 g of (2.1 mmol) of 2-(4-chloro-6-methoxypyrimidin -2-yl)oxy-6-(4,6-dimethoxypyrimidin-2-yl) oxybenzoic acid, 0.1 g of 60% sodium hydride and 0.39 g (2.5 mmol) of chloromethylpivalate were reacted in N,N-dimethylformamide, treated and purified in the same manner as in Example 1. To the residue thus obtained, were added ethanol/hexane to precipitate a solid, which was filtered out to obtain 0.6 g of a white crystal having a melting point of from 83° to 85° C.

1. additiontreated
2. custompurified in the same manner as in Example 1
3. customTo the residue thus obtained
4. customto precipitate a solid, which
5. filtrationwas filtered out