A process for the preparation of tricyclic amino alcohol derivatives of formula (1) or salts thereof which are useful in the treatment and prevention of diabetes, obesity, hyperlipidemia and so on; and intermediates useful for the process:
wherein R1 is lower alkyl group or benzyl; *1 represents an asymmetric carbon atom; R2 is hydrogen, halogen, or hydroxyl; and A is one of the following groups:
(wherein X is NH, O or S; R6 is hydrogen, hydroxyl, amino, or acetylamino; and *2 represents an asymmetric carbon atom when R6 is not hydrogen)
一种用于制备式(1)的
三环氨基醇衍
生物或其盐的方法,该方法有助于治疗和预防糖尿病、肥胖、高脂血症等疾病;以及用于该方法的中间体:其中R1是较低的烷基或苄基;*1代表一个不对称碳原子;R2是氢、卤素或羟基;A是以下组之一:(其中X是NH、O或S;R6是氢、羟基、
氨基或乙酰
氨基;当R6不是氢时,*2代表一个不对称碳原子)