摘要 |
A method for producing a compound of the formula <IMAGE> I wherein: R1, R11 and R12 may be the same or different and each is hydrogen or alkyl; Q is methylene, -O- or -S-; m and n are independently variable and may each have a value of 0, 1 or 2; X is hydrogen, halo, alkyl, alkylthio, alkylsulfinyl, alkylsulfonyl, hydroxy, alkoxy or trifluoromethyl; Y is hydrogen, hydroxy, alkoxy, <IMAGE> <IMAGE> -N(R1)2, <IMAGE> where R1 is as defined above; ring t represents a fused thiophene or fused benzene ring, said fused benzene ring optionally being substituted with a substituent Z as defined below; and Z is X as defined above, amino, alkylamino or <IMAGE> {wherein R10 is hydrogen, alkyl or aryl}, comprising reacting a compound of formula II or formula III <IMAGE> II <IMAGE> III with a compound of the formula <IMAGE> where Hal is a halogen; and R13 is acetyl, or Si(R14)3 where each R14 independently is alkyl or aryl is disclosed.
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