Agents for promoting the proliferation or differentiation of stem cells or neural progenitor cells

摘要

An agent for promoting the proliferation or differentiation of a stem cell and/or neural progenitor cell, comprising a compound represented by Formula:; wherein each of R¹ and R² is H, a hydrocarbon group or a heterocyclic group, or taken together with the adjacent carbon atom to form a ring, R³ is H, a hydrocarbon group or a heterocyclic group, W is a group represented by Formula: ; wherein Ring A is an optionally substituted benzene ring, Ring B is an optionally substituted 5- to 7-membered nitrogen-containing heterocyclic ring, R⁴ is an acyl group having an aliphatic hydrocarbon group, which is substituted by an aromatic group and may have a further substitutent, or aromatic group, R⁵ is H, C_1-6 alkyl or acyl, R^4c is an aromatic group, an aliphatic hydrocarbon group or acyl, and X is O or S; Y is O, S or NH, Ring C is an optionally substituted benzene ring, or a salt or prodrug thereof is provided.