Tetronic acid and its derivatives are always used for the preparation of medicine pesticide and chemical production and they are important organic compounds with high biological and pharmacological activity .

特 窗 酸及其衍生物是一类非常重要的有机化合物，具有很高的生物活性和药理活性，广泛应用于医药、农药和化工产品的生产制备。

Tetronic acid tetronic amine and their derivatives are five-membered heterocyclic compounds along with bio-and pharmacological activities .

特 窗 酸、特窗胺及其衍生物均是生物活性很高的五员杂环化合物，具有重要的研究与实用价值。

Tetronic acid and its derivatives widely distribute not only in nature but also in our daily life which have different types and large numbers .

特 窗 酸及其衍生物类型繁多、数量庞大，在自然界和我们的日常生活中分布都十分广泛。