Compound, process for preparing a compound, process for preparing a stereoisomer of a compound, composition for the treatment of viral diseases, and composition for the treatment of hepatitis b

摘要

"COMPOUND, PROCESS FOR PREPARING A COMPOUND, PROCESS FOR PREPARING A COMPOUND STEREOISMER, COMPOSITION FOR THE TREATMENT OF VIRAL DISEASES, AND COMPOSITION FOR THE TREATMENT OF HEPATITIS B". The present invention relates to (+) - trans-isomers of (1-phosphonomethoxy-2-alkylcyclopropyl) methyl nucleoside derivatives of formula (1) which are useful as an antiviral agent (particularly against hepatitis B virus) pharmaceutically acceptable salts, hydrates or solvates thereof, and processes for the preparation of stereoisomers of the compounds of formula (1), and a composition for the treatment of viral diseases (particularly against hepatitis B virus) comprising (+) - trans -isomer of the compound of formula (1), its pharmaceutically acceptable salt, hydrate or solvate as an active substance.