130056-60-9 DL-Aspartic acid, N-(tricyclo(3.3.1.1(sup 3,7))dec-1-ylcarbonyl)- N-(Tricyclo(3.3.1.1(sup 3,7))dec-1-ylcarbonyl)-DL-aspartic acid N-Adamantanoyl-DL-aspartic acid