申请人:Allergan, Inc.
公开号:US05248777A1
公开(公告)日:1993-09-28
A process is disclosed for the preparation of disubstituted acetylene derivatives having retinoic acid like biological activity, wherein 6-ethynyl-chroman, 6-ethynyl-thio chroman and 6-ethynyl-1,2,3,4-tetrahydroquinoline derivatives of the formula shown below are reacted in the presence of catalysts with halogenated phenyl or heteroaryl derivatives of the formula shown below to provide the disubstituted acetylenes. In the formulae the symbols have the following meanings. R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are hydrogen or lower alkyl groups (of 1-6 carbons) where R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 may be identical or different from one another) X is S, O or NR' where R' is hydrogen or lower alkyl, Z represents hydrogen, or a metal ion capable of forming a salt with the ethynyl moiety of the molecule, X' is a leaving group such as a halogen group, A is phenyl, or heteroaryl such as pyridinyl, thienyl, furyl, pyridazinyl, pyrimidinyl, pyrazinyl, thiazolyl or oxazolyl, n is an integer between 0 to 5, and B is H, --COOH or a pharmaceutically acceptable salt, ester or amide thereof, --CH.sub.2 OH or an ether or ester derivative, or --CHO or an acetal derivative, or --COR.sub.1 or a ketal derivative where R.sub.1 is an alkyl, cycloalkyl or alkenyl group containing 1 to 5 carbons. ##STR1##
本发明公开了一种制备具有类
视黄酸生物活性的二取代
乙炔衍
生物的过程,其中在催化剂的存在下,通过以下式子所示的6-
乙炔基
香豆素、6-
乙炔基
硫代
香豆素和6-
乙炔基-
1,2,3,4-四氢喹啉衍
生物与以下式子所示的卤代苯基或杂环基衍
生物反应,以提供二取代
乙炔衍
生物。在式子中,符号具有以下含义。R.sub.1、R.sub.2、R.sub.3、R.sub.4和R.sub.5为氢或较低的烷基(1-6碳)基团,其中R.sub.1、R.sub.2、R.sub.3、R.sub.4和R.sub.5可以相同或不同)X为S、O或NR',其中R'为氢或较低的烷基,Z表示氢或能够与分子的
乙炔基团形成盐的
金属离子,X'是卤素基团等离子体,A是苯基或杂环基,例如
吡啶基、
噻吩基、
呋喃基、
吡嗪基、
嘧啶基、
吡嗪啉基、
噻唑基或
噁唑基,n是0到5之间的整数,B是H、--COOH或其药学上可接受的盐、酯或酰胺,--CH.sub.2 OH或其醚或酯衍
生物,或--CHO或其
缩醛衍
生物,或--COR.sub.1或其
缩酮衍
生物,其中R.sub.1是含有1到5个碳的烷基、环烷基或烯基基团。