申请人:Boehringer Ingelheim Pharma KG
公开号:US20030232993A1
公开(公告)日:2003-12-18
A process for preparing a compound of formula 1
1
from a compound of formula 2
2
the process comprising reacting in one step the compound of formula 2 with a compound of formula 3
3
wherein:
X
−
is chlorine, bromine, iodine, methanesulfonate, or trifluoromethanesulfonate;
R
1
is hydroxy, C
1
-C
4
-alkyl, C
1
-C
4
-alkoxy, CF
3
, or fluorine;
Ar is phenyl, naphthyl, thienyl, and furyl, each optionally mono- or disubstituted with one or two groups selected from C
1
-C
4
-alkyl, C
1
-C
4
-alkoxy, hydroxy, fluorine, chlorine, bromine, or CF
3
;
Y
−
is chlorine, bromine, iodine, methanesulfonate, or trifluoromethanesulfonate; and
R is hydroxy, methoxy, ethoxy, O—N-succinimide, O—N-phthalimide, phenyloxy, nitrophenyloxy, fluorophenyloxy, pentafluorophenyloxy, vinyloxy, 2-allyloxy, —S-methyl, —S-ethyl, or —S-phenyl.
一种制备化合物11的方法,从化合物22开始,该方法包括在一步中将化合物2与化合物33反应,其中:X−是
氯、
溴、
碘、
甲磺酸甲酯或
三氟甲磺酸盐;R1是羟基、C1-C4-烷基、C1-C4-烷氧基、三
氟甲基或
氟;Ar是苯基、
萘基、
噻吩基和
呋喃基,每种基可选择性地单取代或双取代,取代基包括C1-C4-烷基、C1-C4-烷氧基、羟基、
氟、
氯、
溴或三
氟甲基;Y−是
氯、
溴、
碘、
甲磺酸甲酯或
三氟甲磺酸盐;R是羟基、甲氧基、乙氧基、O—N-琥珀
酰亚胺、O—N-邻苯二甲
酰亚胺、苯氧基、
硝基苯氧基、
氟苯氧基、
五氟苯氧基、烯基氧基、2-
丙烯氧基、—S-甲基、—S-乙基或—S-苯基。