| 摘要 |
<p>A compound represented by the formula (I): wherein R1 and R4 each independently is alkyl or alkoxy; R2 and R3 each independently is hydrogen or alkyl; R5 is hydrogen or halogeno; R6 is hydrogen or hydroxy; and X1 and X2 each independently is -O- or -NH-. The compound was found to have dihydroorotate dehydrogenase inhibitory activity.</p> |
