New process for the preparation of oxabispidines

Details New process for the preparation of oxabispidines New process for the preparation of oxabispidines

C - Chemistry, Metallurgy

07

D

C07D 498/08 (2006.01) A61K 31/5386 (2006.01) A61P 9/06 (2006.01)

Patent

CA 2443477

There is provided a process for the preparation of a benzenesulfonic acid salt of a compound of formula (I) which process comprises reaction of a compound of formula (II) with a compound of form ula (III) wherein R1, R2, A and B have meanings given in the description.

L'invention concerne un processus de préparation d'un sel d'acide benzène sulfonique d'un composé de formule (I), ledit procédé comprenant la réaction d'un composé de formule (II) avec un composé de formule (III), dans laquelle R¿1?, R¿2?, A et B ont les significations données dans le descriptif.

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