Polyhydroxystilbenes(PHS), the stilbenes which possesses a few phenolic hydroxy group, exists in many plants , can help to resist plants diseases, and thus is called photoalexen.
多羟基芪类化合物（polyhydroxystilbenes）是一类具有酚羟基取代基的芪，存在于多种植物中，能增强植物的抗病虫害能力，因而被称为植物抗毒素。
参考来源 - 天然多羟基（艹氏丶）类化合物的合成研究·2,447,543篇论文数据，部分数据来源于NoteExpress
We select the acetoxy group to protect the hydroxy group from a great number of the protection methods for the hydroxy group.
在众多的羟基保护方法中，选择了乙酰氧基对其进行了保护。
Performance and Application 1, Used as modifier of coatings and resins containing hydroxy group, amino-group and hydrosulfide group;
性能及用途 1、可作含羟基、氨基及巯基的有机树脂及涂料的改性剂；
Step II: Ganciclovir with a protected 2-amino group and one aliphatic hydroxy group protected is subjected to de-protection of the amino group.
第二步：2-氨基和一个脂链羟基被保护的更昔洛韦要脱除氨基保护。
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