C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 207/12 (2006.01) A61K 31/40 (2006.01) A61P 1/06 (2006.01) C07D 409/12 (2006.01)
Patent
CA 2271276
Pure enantiomer esters, and hence the (3R,2'R)-, (3S,2'R)-, (3R,2'S)- and (3S,2'S)-configured enantiomers of general formula (I) are disclosed, in which R1 stands for a mono-, bi- or tricyclic C3-C9-cycloalkyl radical optionally substituted by one or several C1-C6-alkyl, C2-C6-alkenyl and/or C2-C6-alkinyl radicals and/or by one or several halogen atoms, such as fluorine, chlorine, bromine or iodine; R2 stands for a C1-C6-alkyl, C2-C6-alkenyl and/or C2-C6-alkinyl radical optionally substituted by one or several halogen atoms, such as fluorine, chlorine, bromine or iodine; R3 stands for a C1-C6-alkyl, C2-C6-alkenyl and/or C2-C6-alkinyl radical optionally substituted by one or several halogen atoms, such as fluorine, chlorine, bromine or iodine; AR stands for a C6-C10 aromatic compound or for a heteroaromatic compound which contains nitrogen, sulphur or oxygen as heteroatom; n is an integer equal to 1, 2 or 3; A is an anion of a pharmacologically admissible acid. Also disclosed is the preparation of these compounds and their use in medicaments.
L'invention concerne des esters énantiomères purs, donc des énantiomères à configuration (3R,2'R)-, (3S,2'R)-, (3R,2'S)- et (3S,2'S) de formule générale (I), dans laquelle R1 désigne un radical mono-, bi- ou tricyclique de cycloalkyle C3-C9, le cas échéant substitué par un ou plusieurs radicaux alkyle C1-C6, alcényle C2-C6 et/ou alcinyle C2-C6 et/ou par un ou plusieurs atomes d'halogènes tels que le fluor, le chlore, le brome ou l'iode; R2 désigne un radical alkyle C1-C6, alcényle C2-C6 et/ou alcinyle C2-C6 le cas échéant substitués par un ou plusieurs atomes d'halogènes tels que le fluor, le chlore, le brome ou l'iode; R3 désigne un radical alkyle C1-C6, alcényle C2-C6 et/ou alcinyle C2-C6 le cas échéant substitués par un ou plusieurs atomes d'halogènes tels que le fluor, le chlore, le brome ou l'iode; AR désigne un composé aromatique C6-C10 ou un composé hétéroaromatique qui contient du nitrogène, du soufre ou de l'oxygène comme hétéroatome; n est un nombre entier qui vaut 1, 2 ou 3; A est un anion d'un acide pharmacologiquement admissible. L'invention concerne également la préparation de ces esters et leur utilisation dans des médicaments.
Czeche Sittah
Elgert Michael
Lambrecht Gunter
Mutschler Ernst
Noe Christian R.
Fetherstonhaugh & Co.
Meda Pharma Gmbh & Co. Kg
Mutschler Ernst
Noe Christian R.
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