Process of use and preparation of fluorocyclopentenyl cytosine

摘要

PROBLEM TO BE SOLVED: To provide a novel compound effective for treating cancers such as pancreatic cancer, bladder cancer, colorectal cancer and / or tumors. A compound (RX-3117) represented by the following formula (I) for use in the treatment of tumors. The compound is preferably orally administered to a subject in need of treatment at a dosage of about 300-2,000 mg / day. [Selection diagram] Fig. 1