、 二(2,2,2-三氟乙基)碳酸酯 、 sodium methylate 、 异辛烷 以Catechol carbonate was isolated by dissolution of the product in 1:1 benzene/petroleum ether and filtration的产率得到pyrocatechol carbonate
New COMT inhibitors for the treatment of depression and impaired cognition
申请人:Diederich Francois
公开号:US20050137162A1
公开(公告)日:2005-06-23
The present invention relates to compounds of formula I
wherein R
1
is as defined in the specification
and to esters thereof which are hydrolyzable under physiological conditions and to the pharmaceutically acceptable salts thereof. The compounds of the invention are inhibitors of COMT and, thus, are useful for the treatment of diseases for which COMT inhibition is beneficial. The invention further relates to the treatment, control, or prevention of diseases such as depression, schizophrenia, Parkinson's disease, and to improve cognition.
[EN] PROCESS FOR THE PREPARATION OF ORGANIC CARBONATE DERIVATES<br/>[FR] PROCÉDÉ DE PRÉPARATION DE DÉRIVÉS DE CARBONATES ORGANIQUES
申请人:ALMA MATER STUDIORUM - UNIVERSITÀ DI BOLOGNA
公开号:WO2017051363A1
公开(公告)日:2017-03-30
The present invention relates in general terms to a new process for the preparation of organic carbonate derivatives, cyclic or linear by a trans carbonation reaction between PCC and a suitable aliphatic alcohol, in the presence of a homogeneous or heterogeneous basic catalyst; the process allows to optimize yields and selectivities of the obtained products, especially in the case of the preparation of symmetrical linear or cyclic carbonates starting from the corresponding primary alcohols.
[EN] PROCESS FOR OBTAINING PHENOLIC DERIVATIVES BY USING GLYCEROL CARBONATE<br/>[FR] PROCÉDÉ D'OBTENTION DE DÉRIVÉS PHÉNOLIQUES À L'AIDE DE CARBONATE DE GLYCÉROL
申请人:UNIV BOLOGNA ALMA MATER STUDIORUM
公开号:WO2018171942A1
公开(公告)日:2018-09-27
It is disclosed a process for obtaining phenolic derivatives with high industrial interest in the pharmaceutical industry by using glycerol carbonate. Specifically, the process provides for a phenol substituted in position 2 to react with glycerol carbonate in the presence of a basic catalyst capable of activating the substituted phenol. The reaction can be carried out in the presence of a homogeneous catalyst or a heterogeneous catalyst, ensuring in any case good selectivity and high yields towards the desired product.
[EN] ALKYLATION OF PHENOLIC COMPOUNDS<br/>[FR] ALKYLATION DE COMPOSÉS PHÉNOLIQUES
申请人:UNIV SYDNEY
公开号:WO2015051402A1
公开(公告)日:2015-04-16
The invention relates to a process for O-alkyiation of a phenolic compound comprising at least two hydroxyl groups bonded to an aromatic hydrocarbon, the process comprising reacting the phenolic compound with an alkylating agent in the presence of a base, at a suitable reaction temperature and for a suitable time period, thereby alkylating the at least two hydroxy] groups. The invention also relates to O-alkylaled phenolic compounds produced by this process.
2-Substituted benzodioxoles are useful as pharmaceuticals having e.g. anti-inflammatory, analgesic, antipyrretic, antitussive, C.N.S. depressant, local anaesthetic, antiarrythmic, antihistaminic action and hypolipidic action.