申请人:Mergelsberg Ingrid
公开号:US20060058343A1
公开(公告)日:2006-03-16
The present invention relates to a process for preparing substituted 8-azabicyclo[3.2.1]octan-3-ols having the structural formula I
or a pharmaceutically acceptable salt or solvate thereof, wherein R is benzyl, R
5
-benzyl, allyl, —C(O)R
6
, —C(O)OR
8
or —CH(R
7
)
2
;
R
1
is optionally substituted aryl or optionally substituted heteroaryl; and
R
5
, R
6
, R
7
and R
8
are as defined in the specification; comprising a) reacting an amine of formula II
R—NH
2
II
with 2,5-dimethoxytetrahydrofuran or HC(O)(CH
2
)
2
C(O)H, and C(O)(CH
2
C(O)OR
4
)
2
, wherein R
4
is H or alkyl, to obtain a compound of formula III
b) reacting a compound of formula III with I-R
1
, alkyl lithium, and optionally a lithium salt, to obtain a compound of formula I; and
c) optionally converting a compound of formula I wherein R is benzyl, R
5
-benzyl, allyl, —C(O)R
6
or —C(O)OR
6
to a compound of formula I wherein R is —CH(R
7
)
2
. Intermediates in the process are also claimed.
本发明涉及一种制备具有结构式I的取代8-氮杂双环[3.2.1]辛烷-3-醇或其药用可接受盐或溶剂的方法,其中R为苄基、R5-苄基、烯丙基、—C(O)R6、—C(O)OR8或—CH(R7)2;R1为可选择取代的芳基或可选择取代的杂芳基;以及R5、R6、R7和R8如规范中所定义;包括a)将式II的胺R—NH2与2,5-二甲氧基四氢呋喃或HC(O)(CH2)2C(O)H以及C(O)(CH2C(O)OR4)2反应,其中R4为H或烷基,以获得式III的化合物;b)将式III的化合物与I-R1、烷基锂和可选择的锂盐反应,以获得式I的化合物;以及c)可选择地将式I的化合物(其中R为苄基、R5-苄基、烯丙基、—C(O)R6或—C(O)OR6)转化为式I的化合物(其中R为—CH(R7)2)。该方法中的中间体也受到保护。