The synthesis of quinoxaline-2-carboxaldehyde from o-phenylenediamine and fructose was too expensive because of its low yield.

喹喔啉-2-甲醛的合成按前人的文献，操作麻烦、产率低、成本太高。

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Pyridine-2-Carboxaldehyde Chitosan( PYCTS) with good chelation properties was synthesized from Chitosan(CTS)and pyridine-2-Carboxaldehyde.

以壳聚糖和2-吡啶甲醛为原料，合成了具有高螯合性能的2-吡啶甲醛缩壳聚糖（PYCTS）。

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Pyridine-2-Carboxaldehyde Chitosan( PYCTS) with good chelation properties was synthesized from Chitosan(CTS)and pyridine-2-Carboxaldehyde.

以壳聚糖和2-吡啶甲醛为原料，合成了具有高螯合性能的2-吡啶甲醛缩壳聚糖（PYCTS）。

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