CELL MEMBRANE-PERMEABLE MOLECULE AND USE THEREOF, AND METHOD OF IMPROVING CELL MEMBRANE PERMEABILITY OF CELL MEMBRANE-PERMEABLE MOLECULE

摘要

A cell membrane-permeable molecule which has a structure represented by general formula (I) and which is in the form of a salt with an acid having a pKa value of lower than 4.7; and a method of improving the cell membrane permeability of a cell membrane-permeable molecule, said method comprising converting the cell membrane-permeable molecule, which has a structure represented by general formula (I), into a salt with an acid.