Ethopabate is prepared via esterification, acylation and alkylation from p - aminosalicylic acid in 87.

以对氨基水杨酸为原料,经酯化 、 酰化和烃化反应得乙氧苯酯,总收率为87.

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Ethopabate is prepared via esterification, acylation and alkylation from p - aminosalicylic acid in 87.4 % overall yield.

以对氨基水杨酸为原料,经酯化 、 酰化和烃化反应得乙氧苯酯,总收率为87.4%.

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