89813-21-8 Adamantylamide dipeptide Adamantylamide-alanyl-isoglutamine D-Glutamamide, L-alanyl-N5-tricyclo(3.3.1.1(3,7))dec-1-yl- L-Alanyl-N5-tricyclo(3.3.1.1(3,7))dec-1-yl-D-glutamamide