PRODUCTION METHOD OF FUSED-RING PYRROLE DERIVATIVE

摘要

PROBLEM TO BE SOLVED: To provide a method by which a fused-ring pyrrole derivative is produced from a triketone industrially and simply. SOLUTION: A triketone represented by formula (A) and a compound represented by formula (B) or an ammonium salt are subjected to condensation reaction to get the fused-ring pyrrole derivative represented by formula (C).