| 摘要 |
A compound represented by the formula (I) [R1 to R8 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. |
