Cyclobutylpurine derivatives, angiogenesis promoters, tube formation promoters, nerve cell growth promoters and pharmaceuticals

摘要

It has at least one of cell growth promotion activity, angiogenesis promotion activity, tube formation promotion activity, cell migration promotion activity and nerve cell growth promotion activity, and is a chemically stable low molecular weight substance, because of its low molecular weight, Provided is a compound that has high absorbability and can be stably supplied at low cost. The cyclobutylpurine derivative of the present invention, a tautomer or stereoisomer thereof, or a salt, solvate or hydrate thereof is a cyclobutylpurine derivative represented by the following general formula (1), or a tautomer thereof. Or a stereoisomer, or a salt, solvate or hydrate thereof.