A simple and efficient method is described for a general synthesis of 4-dialkylamino-5-methoxy-1,2-benzoquinones 3 which involves, in polar solvents, a regioselective (>95%) nucleophilic monosubstitution by a wide range of secondary alliphatic amines on an easily prepared 1,2-quinone 1. Regioselectivity is not observed in the reaction of primary amines with 1, but a further reaction with an alcohol in basic medium allows valorization of the undesirable product.
[EN] CYCLOBUTENEDIONE DERIVATIVES<br/>[FR] DÉRIVÉS DE CYCLOBUTÈNE-DIONE
申请人:PFIZER LTD
公开号:WO2010131145A1
公开(公告)日:2010-11-18
The present invention relates to compounds of the formula (I): to pharmaceutically acceptable salts therefore and to pharmaceutically acceptable solvates of said compounds and salts, wherein the substituents are defined herein; to compositions containing such compounds; and to the uses of such compounds in the treatment of various diseases, particularly inflammatory conditions.
A novel and excellent method for preventing and/or treating diseases related to a cannabinoid type 2 receptor, based on an agonistic action on a cannabinoid type 2 receptor. It was found that a hetero ring derivative mainly having two substituents, for example, a pyrimidine-5-carboxamide derivative having a substituent amino group at the 2-position, exhibits a potent agonistic action on a cannabinoid type 2 receptor, and can be an agent for preventing and/or treating diseases related to a cannabinoid type 2 receptor such as inflammatory diseases, pain, and the like.
[EN] AMINOQUINAZOLINE COMPOUNDS FOR COMBATING INVERTEBRATE PESTS<br/>[FR] COMPOSÉS D'AMINOQUINAZOLINE DESTINÉS À LUTTER CONTRE DES INVERTÉBRÉS NUISIBLES
申请人:BASF SE
公开号:WO2011036074A1
公开(公告)日:2011-03-31
The invention relates to aminoquinazoline compounds or the enantiomers or veterinarily acceptable salts thereof which are useful for combating or controlling invertebrate pests, in particular arthropod pests and nematodes. The invention also relates to methods for controlling invertebrate pests by using these compounds and to plant propagation material and to agricultural and veterinary compositions comprising said compounds. Formula (I) wherein A1, A2, A3, A4, R1, R2, R3, R4, R5a, R5b, R5c, R5d and p are defined as in the description.