Styrene derivatives of formula (1) are novel wherein R1 is hydrogen, C1-20 alkyl, fluoro-substituted C1-20 alkyl, chloro, or trichloromethyl, R2 is a phenol protecting group, p, q and r are integers in the range of 0≦p<5, 0≦q<5, 0
公式(1)的苯乙烯衍生物是新颖的,其中R1是氢,C1-20烷基,氟取代的C1-20烷基,氯或三氯甲基,R2是苯酚保护基,p,q和r是0≤p<5,0≤q<5,0
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