N,beta,beta-trimethyl-L-phenylalanyl-L-N(1)-((1S,2E-3-carboxy-1-isopropylbut-2-enyl))-N(1),3-dimethyl-L-valinamide
n,beta,beta-trimethyl-l-phenylalanyl-l-n(1)-((1s,2e-3-carboxy-1-isopropylbut-2-enyl))-n(1),3-dimethyl-l-valinamide