A compound represented by the formula (I) [R1 to R3 represent an alkyl group, an alkenyl group, and the like; n represents 0 or 1; R4 represents an amino group or —(CX2)m—COOH (m represents 0 to 3, and X represents hydrogen atom); R5 represents —(CY2)p—COOR6 (p represents an 0 to 3, Y represents hydrogen atom, and R6 represents hydrogen atom or an alkyl group)], or a salt thereof.
一种由式(I)表示的化合物[R1至R3代表烷基、烯基等;n代表0或1;R4代表
氨基或—(CX2)m—COOH(m代表0至3,X代表氢原子);R5代表—(CY2)p—COOR6(p代表0至3,Y代表氢原子,R6代表氢原子或烷基)],或其盐。