| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an intermediate useful for preparing a compound useful for treating neurodegenerative diseases such as Alzheimer's disease and Down syndrome, and an industrially advantageous method for preparing the same. <P>SOLUTION: There are provided the intermediate expressed by chemical formula (I-b), and the method for preparing a compound expressed by general formula (I) covering the chemical formula (I-b) by carrying out the coupling reaction of a compound expressed by general formula (II) with a compound expressed by general formula (III) (wherein R represents a fluorine atom or a methoxy group). <P>COPYRIGHT: (C)2012,JPO&INPIT |
