申请人:Kankan Rajendra Narayanrao
公开号:US20100113790A1
公开(公告)日:2010-05-06
A process for preparing a compound of formula (III) comprising condensing an oxiranyl compound of formula (I) with an amine of formula (II) or a salt thereof wherein: R
1
is a group selected from alkyl, aryl, allyl, alkoxy, cycloalkyl, heterocyclic, alkenyl, benzocycloalkyl, aralkyl, haloarylalkyl, heteroaralkyl, haloalkyl, alkoxyaralkyl, substituted silyl and benzyl; and R
2
is hydrogen, optionally substituted silyl or optionally substituted benzyl.
There is also described a process for preparing (R,R)-carmoterol from compound (III).
一种制备式(III)化合物的方法,包括将式(I)的环氧丙烷化合物与式(II)的胺或其盐缩合,其中:R1是从烷基,芳基,烯丙基,烷氧基,环烷基,杂环基,烯基,苯并环烷基,芳基烷基,卤代芳基烷基,杂环芳基烷基,卤代烷基,烷氧基芳基烷基,取代硅基和苄基中选择的基团;R2是氢,可选的取代硅基或可选的取代苄基。还描述了从化合物(III)制备(R,R)-卡莫特罗尔的方法。