| 摘要 |
The invention relates a method for producing a compound of formula (I), wherein W is a -COOR group or CN radical, R1 is a hydrogen or halogen atom or a (Cl - C4)alkyl group, R3, R4, R5, R6, R7 represent independently of each other a hydrogen or halogen atom or a (Cl -C4)alkyl, (C1-C4)alkoxy or trifluoromethyl group and R is a (C1-C4 )alkyl or benzyl group. ® KIPO & WIPO 2007
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