英文名称: | 7h-1,3,4-thiadiazolo(3,2-a)pyrimidin-7-one, 5,6-dihydro-2-(2-ethoxyphenyl)-5-im | ino- | 3,4-thiadiazolo(3,2-a)pyrimi din-6-dihydro-2-(2-ethoxyphenyl)-5-imino-7h-1 | 7-one | 4-thiadiazolo(3,2-a)pyrimidin-7-one,5,6-dihydro-2-(2-ethoxyphenyl)-5-imino-7h-3 |
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