(EN) Anxiolytic agents which are racemic or optically active pyrido[1,2-a]pyrazine derivatives of formula (I), wherein X is N or CH and Y represents one of certain pyrazolo, triazolo, tetrazolo or cyclic imido radicals; and intermediates therefor.(FR) On décrit des agents anxiolytiques qui sont racémiques ou des dérivés optiquement actifs de pyrido(1,2-a)pyrazine ayant la formule (I) selon laquelle X constitue N ou CH et Y représente un radical parmi certains radicaux de pyrazole, de triazole, de tétrazole ou d'imide cyclique; et des intermédiaires de ceux-ci.
Bis-aza-bicyclic anxiolytic agents and antidepressants
申请人:PFIZER INC.
公开号:EP0380217A1
公开(公告)日:1990-08-01
An anxiolytic or antidepressant which is a racemic or optically active compound of the formula
or a pharmaceutically acceptable acid addition salt thereof, wherein
X is N or CH;
Y is
Z is
SCH₂, OCH₂, -Y¹(CH₂)n or Y¹(CH₂)n substituted on carbon with up to 2 methyl groups;
n is 1 or 2; and
Y¹ is CH₂, NH or NCH₃.
一种抗焦虑或抗抑郁药,它是式中的外消旋或光学活性化合物
或其药学上可接受的酸加成盐,其中
X 是 N 或 CH
Y 是
Z 是
SCH₂、OCH₂、-Y¹(CH₂)n 或在碳上被最多 2 个甲基取代的 Y¹(CH₂)n;
n 是 1 或 2;以及
Y¹ 是 CH₂、NH 或 NCH₃。
Synthesis of an optically active octahydro-2H-pyrido[1,2-a]pyrazine based CNS agent
作者:Frank J Urban、Ralph Breitenbach、Charles W Murtiashaw、Brian C Vanderplas
DOI:10.1016/0957-4166(95)00003-8
日期:1995.2
A synthesis of an optically active octahydro-2H-pyrido[1,2-a]pyrazine is presented. The key sequence involved the equilibration of an optically active cis-aldehyde to give the thermodynamic trans-aldehyde that was trapped by nitromethane anion.
PYRIDOPYRAZINE DERIVATIVES FOR TREATING SUBSTANCE ABUSE AND ADDICTION