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    • 71. 发明申请
    • POSITIVELY CHARGED WATER-SOLUBLE PRODRUGS OF ACETAMINOPHEN AND RELATED COMPOUNDS WITH VERY FAST SKIN PENETRATION RATE
    • 具有非常快速皮肤渗透率的乙酰氨基酚和相关化合物的积极充电水溶性产品
    • WO2008029200A1
    • 2008-03-13
    • PCT/IB2006/053091
    • 2006-09-03
    • TECHFIELDS BIOCHEM CO. LTDYU, ChongxiXU, Lina
    • YU, ChongxiXU, Lina
    • C07C211/64C07C215/42C07C233/07
    • C07C233/25A61P11/06A61P17/00A61P27/06A61P27/16A61P29/00A61P35/00
    • The novel positively charged pro-drugs of acetaminophen, acetaminosalol, and related compounds in the general formula (1) 'Structure 1' were designed and synthesized. The positively charged amino groups of these pro-drugs not only largely increases the solubility of the drugs, but also bonds to the negative charge on the phosphate head group of membranes and pushes the pro-drug into the cytosol. The results suggest that the pro-drugs diffuses through human skin ~150 times faster than does acetaminophen, acetaminosalol, and related compounds. It takes 1-2 hours for acetaminophen and acetaminosalol, and related compounds to reach the peak plasma level when they are taken orally, but these prodrugs only took about ~50 minutes to reach the peak plasma level when they are taken transdermally. In plasma, more than 90% of these pro-drugs can be changed back to the parent drugs in a few minutes. The prodrugs can be used medicinally for treating any NSAIAs-treatable conditions in humans or animals. The prodrugs can be administered not only orally, but also transdermally for any kind of medical treatments and avoid most of the side effects of NSAIAs. Controlled transdermal administration systems of the prodrugs enables acetaminophen, acetaminosalol, and related compounds to reach constantly optimal therapeutic blood levels to increase effectiveness and reduce the side effects of acetaminophen, acetaminosalol, and related compounds. Another great benefit of transdermal administration of these pro-drugs is that administering medication, especially to children, will be much easier.
    • 设计并合成了通式(1)“结构1”中对乙酰氨基酚,乙酰氨基酚和相关化合物的新型带正电荷的前药。 这些前药的带正电荷的氨基不仅大大增加了药物的溶解度,而且还与磷酸盐头基团上的负电荷键合,并将前药推入细胞溶质中。 结果表明,前药通过人体皮肤扩散比对乙酰氨基酚,乙酰氨基酚和相关化合物快约150倍。 对乙酰氨基酚和乙酰氨基奥沙罗芬需要1-2小时,口服相关化合物达到峰值血浆水平,但这些前药在经皮摄取后仅花费约50分钟达到峰值血浆水平。 在血浆中,超过90%的这些前药可以在几分钟内更换回母体药物。 前药可用于医学上用于治疗人或动物中任何NSAIAs可治疗的病症。 前药不仅可以口服给药,也可以经皮给予任何类型的药物治疗,并避免NSAIAs的大部分副作用。 前药的受控经皮给药系统使对乙酰氨基酚,乙酰氨基酚和相关化合物达到不断优化的治疗血液水平,以增加对乙酰氨基酚,乙酰氨基酚和相关化合物的效力并降低副作用。 经皮给药这些前药的另一大好处是给予药物,尤其是给儿童服用药物将容易得多。