| 摘要 |
PROBLEM TO BE SOLVED: To obtain a compound to perform a promoting effect on cornea epithelium extension in an ophthalmic field. SOLUTION: A P2Y receptor agonist represented by a phosphoric acid compound containing an adenosyl group, a uridyl group, a xanthosyl group, a guanosyl group or a thimidyl group or its salts exhibits an excellent promoting effect on cornea epithelium extension. For example, uridine 5'-diphosphate, adenosine 5'-diphosphate, uridine 5'-triphosphate, adenosine 5'-trtphosphate, P1,P4-di(uridine-5')tetraphosphate represented by the chemical formula or their salts can be cited as compounds having an especially excellent action among compounds of the P2Y receptor agonist.
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