abstract |
The present invention provides (1S, 2S, 3S, 4R) -3-[(1S) -1-acetylamino-2-ethyl-butyl] -4-guanidino-2-hydroxy-cyclopentyl-1-carboxylic acid hydrate A compound, a method for preparing the same, a pharmaceutical composition comprising the compound and a method for preparing the same, and a clinical use of the compound as a neuraminidase inhibitor against anti-influenza. |