申请人:Nagai Masashi
公开号:US20050020834A1
公开(公告)日:2005-01-27
A method for preparing a compound represented by the following general formula (5)
where, n is an integer of 0 to 3; and Y represents a protecting group for an amino group, the method including the steps of reacting a compound represented by the following general formula (3)
where n and Y are as described above, with a silylating agent, and subsequently reacting it with P (═O) T
3
, where T represents a halogen atom, and further with ammonia.
A method for preparing an optically active intermediate of sulphostin or an analogue thereof, which is an optically active amine salt of an optically active compound represented by the following general formula (8)
where n is an integer of 0 to 3; Y represents a protecting group for the amino group; and each configuration at C* and P* may be the same or different and indicates S or R, the method including reacting a compound represented by the following general formula (7)
where n and Y are as described above; and the configuration of C* indicates either of S or R, with an optically active amine, and resolving the formed diastereomeric salt by fractional crystallization.
以下是一个制备以下通用式(5)所表示的化合物的方法,其中n为0到3的整数;Y表示氨基保护基。该方法包括以下步骤:将以下通用式(3)所表示的化合物与硅基化试剂反应,然后再与P(═O)T3(其中T表示卤素原子)反应,最后再与氨反应。
以下是制备sulphostin或其类似物的光学活性中间体的方法,该中间体是以下通用式(8)所表示的光学活性化合物的光学活性胺盐,其中n为0到3的整数;Y表示氨基保护基;C*和P*的每个构型可以相同也可以不同,并表示S或R。该方法包括将以下通用式(7)所表示的化合物与光学活性胺反应,并通过分数结晶分离形成的对映异构体盐。