C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/295
C07D 213/38 (2006.01) C07D 213/60 (2006.01) C07D 213/61 (2006.01) C07D 213/65 (2006.01) C07D 213/68 (2006.01) C07D 213/69 (2006.01)
Patent
CA 1203804
ABSTRACT The invention provides a process for preparing a compound of formula (II):- Image (II) where R3 and R4 are the same or different and are hydrogen, R1-4 alkyl, C1-4 alkoxy, amino or nitro and n is from 2 to 5 which comprises reacting an alkali metal derivative of a compound of formula (III) :- Image (III) where R3 and R4 are as defined with reference to formula (II) with a compound of formula (IV):- Image (IV) or a salt thereof, where n is defined with reference to formula (II) and X is halogen, in the presence of a non-interfering solvent, and thereafter optionally converting the compound of formula (II) so obtained into a salt.
424428
Adger Brian M.
Mastrocola Antonietta R.
Gowling Lafleur Henderson Llp
Smith Kline & French Laboratories Limited
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