A series of 3-halo-5-phenyl- and 3-phenyl-5-haloisoxazoles has demonstrated anthelmintic activity at doses ranging from 16 to 500 mg/kg orally against the rat roundworm, Nippostrongylus braziliensis. In the 5-phenyl series a halogen at the 3 position of the isoxazole ring was required for activity. However, in the 3-phenyl series activity was maintained after replacement of the 5-halogen with certain alkoxyl, thioalkoxyl, or amino groups. The 3-phenyl and 5-phenyl series apparently are not acting biologically at a common receptor site. Synthetic methods and structure-activity relationships are discussed.
[EN] PROCESS FOR MAKING FINGOLIMOD<br/>[FR] PROCÉDÉ DE FABRICATION DU FINGOLIMOD
申请人:SYNTHON BV
公开号:WO2012041359A1
公开(公告)日:2012-04-05
The invention relates to a process of making fingolimod of formula (1), or an acid addition salt thereof comprising a step of reacting the compound of formula (11) and/or a compound of formula (14) or an acid addition salt thereof, in a solvent with hydrogen in a presence of a hydrogenation catalyst, preferably palladium catalyst, and optionally converting fingolimod of formula (1) into an acidaddition salt, to compounds of formula (11) and (14) and their use in making fingolimod.
[EN] IMPROVED FINGOLIMOD PROCESS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE FINGOLIMOD AMÉLIORÉ
申请人:EMCURE PHARMACEUTICALS LTD
公开号:WO2015107548A1
公开(公告)日:2015-07-23
The present invention relates to a novel synthetic route for the preparation of fingolimod and its pharmaceutically acceptable salts. The synthetic strategy comprises reaction of 2-(4- octylphenyl)-acetaldehyde with nitro acetonide, and subsequent conversions of the resulting acetonide protected nitro-alcohpl intermediates of formulae (8), (9) and (10) to the penultimate acetonide protected amino intermediates of formula (11), which on deprotection with acid yields Fingolimod and its corresponding salts, having purity conforming to regulatory specification.
INTERMEDIATE COMPOUNDS AND PROCESS FOR THE PREPARATION OF FINGOLIMOD
申请人:Marom Ehud
公开号:US20130217899A1
公开(公告)日:2013-08-22
The present invention relates to processes for the preparation of (2-Amino-2-[2-(4-octylphenyl)ethyl]propane-1,3-diol hydrochloride (Fingolimod) and pharmaceutically acceptable salts thereof, and intermediates formed in such processes.