9. 甲氧苄啶的化学名为（ ） A. 5-[[3,4,5- trimethoxyphenyl]methyl]-2,6-pyrimidine diamine B. 5-[[3,4,5- trimethoxyphenyl]methyl]-4,6-pyrimidine diamine C. 5-[[3,4,5- trimethoxyphenyl]methyl]-2,4-pyrimidine diamine D. 5-[[3,4,5- trimethoxyphenyl] ethyl]-2,4-pyrimidine diamine E. 5-[[3,4,5- trimethyphenyl]methyl]-2.4-pyrimidine diamine
问题 更新时间2023/4/3 12:59:00
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