| 摘要 |
The present invention relates to a novel process for preparing 4- [(2',5'-diamino- 6'-halopyrimidine- 4'-yl)amino]-cyclopent-2-enylmethanols of the general formula I, wherein X represents a halogen atom. According to the inventive process, a 2,5-diamino-4,6-halopyrimidine of the general formula II, wherein X has the aforementioned meaning, is reacted with a 4- aminocyclopent-2-enylmethanol of the general formula III or with a salt thereof in the presence of a base in a polar protic solvent. |
