Provide the compound that the general structure (I) of viral infection, particularly viral influenza is treated or prevented with what. Also describe its pharmaceutical preparation with and preparation method thereof. Therapeutic effect is realized by inhibiting the neuraminidase for being also known as Viral sialidases. These neuraminidases are classified as to the GH34 race of viral enzyme.提供了用於治療或預防病毒性感染、特別是病毒性流感的結構通式(I)的化合物。還描述了其藥物製劑以及其製備方法。通過抑制還稱爲病毒唾液酸酶的病毒神經氨酸酶來實現治療效果。將這些神經氨酸酶歸類爲病毒酶的GH34族。
