[EN] OREXIN RECEPTOR ANTAGONISTS WHICH ARE [ORTHO BI (HETERO )ARYL]-[2-(META BI (HETERO )ARYL)-PYRROLIDIN-1-YL]-METHANONE DERIVATIVES<br/>[FR] ANTAGONISTES DES RÉCEPTEURS DE L'OREXINE, QUI SONT DES DÉRIVÉS [ORTHO BI (HETERO )ARYL]-[2-(META BI (HETERO )ARYL)-PYRROLIDIN-1-YL]-METHANONE
申请人:ACTELION PHARMACEUTICALS LTD
公开号:WO2014057435A1
公开(公告)日:2014-04-17
The present invention relates to [ortho bi-(hetero-)aryl]-[2-(meta bi-(hetero-)aryl)-pyrrolidin-1-yl]- methanone derivatives of formula (I) wherein R, and the rings A1 A2 and A3 are as described in the description, to pharmaceutically acceptable salts thereof, to their preparation, to pharmaceutical compositions containing one or more compounds of formula (I), and to their use as pharmaceuticals, especially to their use as orexin receptor antagonists.
METHOD FOR PRODUCING (METH) ACRYLATE ESTER COMPOUNDS
申请人:KURARAY CO., LTD.
公开号:US20180050975A1
公开(公告)日:2018-02-22
An object of the invention is to provide a method for producing a (meth)acrylate ester compound by the transesterification of an alkyl (meth)acrylate with an alcohol compound having a tertiary hydroxyl group so as to esterify all the hydroxyl groups present in the alcohol compound with a high yield or, in a preferred embodiment, a method for esterifying a polyhydric alcohol compound having a tertiary hydroxyl group and also having a primary hydroxyl group and/or a secondary hydroxyl group by one-pot transesterification into a (meth)acrylate ester compound of the polyhydric alcohol. The method for producing a (meth)acrylate ester compound includes a step (I) of transesterifying an alkyl (meth)acrylate with an alcohol compound having a tertiary hydroxyl group using a transesterification catalyst including a complex of iron with a specific ligand, the water content in the transesterification reaction system being not more than 1000 ppm.
Various carbonyl amides are employed in vitro and in vivo as non-nucleoside inhibitors of a reverse transcriptase, and particularly of HIV reverse transcriptase. Therefore, contemplated compounds may be employed in the treatment of HIV infected patients. Further contemplated aspects include pharmaceutical compositions comprising therapeutically effective amounts of contemplated compounds.
OREXIN RECEPTOR ANTAGONISTS WHICH ARE [ORTHO BI-(HETERO-)ARYL]-[2-(META BI-(HETERO-)ARYL)-PYRROLIDIN-1-YL]-METHANONE DERIVATIVES
申请人:ACTELION PHARMACEUTICALS LTD
公开号:US20150252032A1
公开(公告)日:2015-09-10
The present invention relates to [ortho bi-(hetero-)aryl]-[2-(meta bi-(hetero-)aryl)-pyrrolidin-1-yl]-methanone derivatives of formula (I)
wherein R, and the rings A
1
A
2
and A
3
are as described in the description, to pharmaceutically acceptable salts thereof, to their preparation, to pharmaceutical compositions containing one or more compounds of formula (I), and to their use as pharmaceuticals, especially to their use as orexin receptor antagonists.
METAL CATALYST FOR RING-OPENING POLYMERIZATION OF HETEROCYCLIC COMPOUND
申请人:SANYO CHEMICAL INDUSTRIES, LTD.
公开号:EP1340780A1
公开(公告)日:2003-09-03
The object of the present invention is to provide a metal catalyst which allows the production of a ring-opened polymer available from a heterocyclic compound, having primary terminal heteroatomic groups (terminal hydroxyl groups, in particular) in a ratio exceeding 75%.
The above object can be attained by using a metal catalyst comprising a ligand and a metal atom for ring-opening polymerization of heterocyclic compounds
in which, of all maximum angles (D) meeting the following definition, the smallest maximum angle (Dm) is not larger than 60 degrees;
The maximum angle (D) is the largest angle between an imaginary line (X) and an imaginary line (Y) of all the angles which can be assumed in a metal catalyst comprising a ligand and a metal atom,
said imaginary line (X) means a line perpendicular to an imaginary plane (P) including the respective centers of 3 coordinating atoms among those directly coordinating the metal atom (M) and not substitutable by a reaction substrate (S) and passing through the center of the metal atom,
said imaginary line (Y) means a line linking the center of a non-coordinating atom in the ligand and the center of the metal atom,
and said maximum angle (D) exists in a number equal to the number of non-coordinating atoms, that is, the number of imaginary lines (Y).