PROCESS FOR PRODUCING TETRAZOLE-SUBSTITUTED ANTHRANILAMIDE DERIVATIVES AND NOVEL CRYSTAL POLYMORPHS OF THESE DERIVATIVES

摘要

PROBLEM TO BE SOLVED: To provide a novel crystal polymorph of anthranilamide derivatives with higher purity and better quality which is easy to handle and enables production of a stable formulation.SOLUTION: The invention provides a novel crystal polymorph referred to as crystal polymorph B of the compound represented by the formula (I-1) having specific reflections in an X-ray powder diffraction using Cu Kα radiation.SELECTED DRAWING: None