Synthesis method of 4-fluoro-2,3-dimethylphenyl methanesulfonate
The invention discloses a synthesis method of 4-fluoro-2,3-dimethylphenyl methanesulfonate. The method comprises the following steps: 1, carrying out a halogenation reaction on 3-fluoroxylene to obtain 4-fluoro-2,3-dimethylhalobenzene; 2, carrying out a c
Method for synthesizing 2, 3-dimethyl-4-fluorophenol
The invention discloses a method for synthesizing 2,3-dimethyl-4-fluorophenol. The method comprises the following steps: adding aluminum trichloride in 2,3-dimethylfluorobenzene at a normal temperature and carrying out bromination reaction to obtain 3-bro
This present invention relates to compounds of the formula wherein G, R1 and R2 are defined as in the specification, to pharmaceutical compositions containing them and to their use in the treatment and prevention of central nervous system and other disorders.
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(2008/06/13)
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