Pyrrolo {2,1-b}{1,3}benzothiazepines with atypical antipsychotic activity
申请人:——
公开号:US20020006921A1
公开(公告)日:2002-01-17
Polycondensated heterocycles with a pyrrole[2,1-b][1,3]benzothiazepine structure of the following formula (I)
1
where the groups are defined as in the description are disclosed. As compared to known antipsychotic agents, these compounds present substantial activity associated with a simultaneous reduction in unwanted extrapyramidal symptoms. These compounds can be formulated in pharmaceutical compositions for the treatment of psychoses such as, for example, schizophrenia.
A compound of formula (I)
wherein R is a group
R' is hydrogen, phenyl, C1-20 alkyl, C2-8 alkenyl or C2.8 alkynyl each of which may optionally be substituted; or C3-7 cycloalkyl,
X is a divalent group -Y-C=C-, and
Y is oxygen or sulphur, have antibacterial and/or antimycoplasmal activity.
An α-halo(methylthio)acetophenone of formula (2):
wherein X is chlorine or bromine can be produced by treating the corresponding methylthioacetophenone with a halogenating agent in the presence of an alcohol. Oxidation of the α-halo(methylthio)acetophenone yields the corresponding α-halo(methylsulphonyl)acetophenone.
式(2)的α-卤代(甲硫基)苯乙酮:
其中 X 为氯或溴,可通过在醇存在下用卤化剂处理相应的甲硫基苯乙酮制得。氧化 α-卤代(甲硫基)苯乙酮可得到相应的 α-卤代(甲磺酰基)苯乙酮。
1-[(4-methyl thio)phenyl]-2-(phenyl acetoxy)-1-ethanone and a process for preparing the same
申请人:——
公开号:US20040242680A1
公开(公告)日:2004-12-02
This invention relates to 1-[(4-methyl thio)phenyl]-2-(phenyl acetoxy)-1-ethanone. This compound is convertible into 4-(4-methyl thio phenyl)-3-phenyl-2 (5H)-furanone by an economically viable process. This substituted furanone is an intermediate or starting compound for synthesising COX II inhibitor Rofecoxib. This invention also includes a process for preparing the ethanone derivative by halogenating methyl thio aceto phenone and coupling the resulting 2 halosubstituted ethanone with sodium salt of phenyl acetic acid to obtain 1-[(4-methyl thio) phenyl]-2-(phenyl acetoxy)-1-ethanone.
本发明涉及 1-[(4-甲基硫基)苯基]-2-(苯基乙酰氧基)-1-乙酮。该化合物可通过经济可行的工艺转化为 4-(4-甲基硫代苯基)-3-苯基-2 (5H)-呋喃酮。这种取代的呋喃酮是合成 COX II 抑制剂罗非昔布的中间体或起始化合物。本发明还包括一种制备乙酮衍生物的工艺,通过卤化甲基硫代乙酰苯酮,并将得到的 2 卤代乙酮与苯乙酸钠盐偶联,得到 1-[(4-甲基硫代)苯基]-2-(苯基乙酰氧基)-1-乙酮。
Pyrrolo[2,3-b]pyridines having therapeutic activity and a process for the preparation thereof