目的寻找活性强、副作用小的5 -氨基水杨酸衍生物。
Objective To search a better 5-aminosalicylic acid (5-asa) derivative with higher activity and less side effects.
为寻找降血脂作用强、 不良反应轻、安全有效的烟酸衍生物，以烟酸和水杨酸为原料，采用酰氯法经过二步合成了烟酸的衍生物烟酰水杨酸。
To seek a nicotinic derivative with effect, safety and less adverse effect, nicotinyl salicylic acid was synthesized from nicotinic acid with salicylic acid by employing the acyl chloride method.
由于新规强制要求银行为波动性强的互换合约以及各类衍生品合约预留大量准备金，这些原本盈利的合约转而出现亏损。
Once profitable swaps and assorted derivatives contracts sprung losses when new rules mandated that Banks back those volatile contracts with heavy reserves.
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