The preparation method of the invention is of simple operation with moderate condition and high reaction yield and with great market potential, thus is easy to be industrialized.
本发明所采用的制备方法具有操作简便、条件温和、反应收率高的特点，易于工业化，具有较高的市场潜力。
The preparation method of the invention is of simple operation with moderate condition and high reaction yield and with great market potential, thus is easy to be industrialized.
本发明所采用的制备方法具有操作简便、条件温和、反应收率高的特点，易于工业化，具有较高的市场潜力。
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