C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
C07D 249/08 (2006.01) A61K 31/41 (2006.01) C07D 403/06 (2006.01) C07D 521/00 (2006.01)
Patent
CA 2119995
ABSTRACT OF THE DISCLOSURE The invention provides a regiospecific process for the preparation of 1,3-bis(1,2,4-triazol-1-yl)-propan-2-ol derivatives of the general formulas I and Ia: Image I Image Ia wherein: R is alkyl, cycloalkyl, aryl or aralkyl optionally substituted by one or more same or different halogen groups; and X is the anion of a strong acid; comprising reacting an oxirane acid salt of the general formula II: Image II wherein R and X are as defined above; or reacting an oxirane of the general formula II': Image II' wherein R and X are as defined above, under acidic conditions, with 4H-4-amino-1,2,4-triazole of the formula III: Image III and optionally deaminating a compound of the formula Ia to form a compound of formula I.
Senderichin Alexander
Veinberg Alexander
Borden Ladner Gervais Llp
Teva Pharmaceutical Industries Ltd.
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